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  • 1981

Shop By Brand

The Following brands are available based on your search.

  • Gates
    Gates
  • Motorad
    Motorad

Shop By Related Engine Coolant Thermostat Parts

Shop below for all Engine Coolant Thermostat related parts for your Mack


Shop for Top Selling Genuine Mack Rws Thermostats

  • We Stock the following top leading brands, including Motorad, Gates
  • Constantly Updated Inventory of Mack Rws Replacement Thermostat Parts

We also have Thermostat parts for other Mack models, including CF, CH, CL, CM, CV, CX, CXU, DM, DMM, FDM, GU4, GU5, Granite, LC, LE, LEU, LR, LR600, MC, MH, MR, MRU, R, RB, RD, RM, RS, RW, RWL, RWS, TerraPro, WS.


Motorad
1986 Mack RW Engine Coolant Thermostat 6 Cyl 14.6L Motorad - Heavy Duty Thermostat

P311-1DFE365    880090  New

Qty:
In Stock & Ready to Ship
$21.37
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 190F Includes seal
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 192
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1986 - Mack RW L 6 Cyl 14.6L 893 14636
Motorad
1991 Mack RW Engine Coolant Thermostat 6 Cyl 14.0L Motorad - Heavy Duty Thermostat

P311-1DFE365    880090  New

Qty:
In Stock & Ready to Ship
$21.37
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 190F Includes seal For Engine Coolant OEM Recommended Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 192
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Mack RW L 6 Cyl 14.0L 855 14013
Motorad
Qty:
In Stock & Ready to Ship
$21.37
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 190F Includes seal OEM Recommended Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 192
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1984 - Mack RWS L 6 Cyl 18.8L 1150 18848
Motorad
1988 Mack RW Engine Coolant Thermostat 6 Cyl 14.6L Motorad - Heavy Duty Thermostat

P311-1DFE365    880090  New

0199221 , 110110007 , 12TH8E , 14239 , 14509 , 14519 , 14529 , 14539 , 14549 , 15229 , 1601-290258 , 23504472 , 23504473 , 23504474 , 33579 , 33599 , 34319 , 4047-90 , 4549 , 613-090 , 7C3095 , 88009 , 880090 , 8929878 , 9880090 , P4549 , S450190 , S451190 , S452190 , S453190 , S454190 , THD289

Qty:
In Stock & Ready to Ship
$21.37
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 190F Includes seal OEM Recommended Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 192
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1988 - Mack RW L 6 Cyl 14.6L 893 14636
Motorad
Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-170 Degrees
  • Temperature 170F Includes seal
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 170
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1984 - Mack RWS L 6 Cyl 18.8L 1150 18848
Motorad
Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-170 Degrees
  • Temperature 170F Includes seal
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 170
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1982 - Mack RWS L 6 Cyl 14.6L 893 14636
Motorad
1991 Mack RW Engine Coolant Thermostat 6 Cyl 14.0L Motorad - Heavy Duty Thermostat

P311-3942D5D    880070  New

Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-170 Degrees
  • Temperature 170F Includes seal For Engine Coolant Alternate Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 170
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Mack RW L 6 Cyl 14.0L 855 14013
Motorad
1992 Mack RW Engine Coolant Thermostat 6 Cyl 14.6L Motorad - Heavy Duty Thermostat

P311-3942D5D    880070  New

0199221B , 0199221C , 027074993 , 027074995 , 065561202 , 110110005 , 12301821 , 12302406 , 12302514 , 12TH8C , 13257 , 14507 , 14517 , 14527 , 14537 , 14547 , 1601-290256 , 215SB165P2 , 33407 , 33577 , 34791 , 4547 , 4631417 , 5106240 , 52033575 , 613-070 , 657GC327P70 , 657GC39P70 , 88007 , 880070 , 9880070 , A026742 , P4547 , RT177 , RT339 , S450170 , S451170 , S452170 , S453170 , S454170 , THD179 , TX3779 , Y201366

Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-170 Degrees
  • Temperature 170F Includes seal Alternate Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 170
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1992 - Mack RW L 6 Cyl 14.6L 893 14636
Motorad
1991 Mack RW Engine Coolant Thermostat 6 Cyl 14.0L Motorad - Heavy Duty Thermostat

P311-167A3E0    880060  New

Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-160 Degrees
  • Temperature 160F Includes seal For Engine Coolant Alternate Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 160
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Mack RW L 6 Cyl 14.0L 855 14013
Motorad
Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-160 Degrees
  • Temperature 160F Includes seal
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 160
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1983 - Mack RWS L 6 Cyl 14.6L 893 14636
Motorad
1991 Mack RW Engine Coolant Thermostat 6 Cyl 14.6L Motorad - Heavy Duty Thermostat

P311-167A3E0    880060  New

027074996 , 063837 , 12302405 , 12302513 , 12TH8B , 135675 , 14506 , 14516 , 14536 , 146076 , 194245 , 204586 , 215SB165P1 , 23503827 , 2W7133 , 3002742 , 33406 , 33576 , 4546 , 4631416 , 491417 , 4L7615 , 4N2212 , 5102112 , 5118264 , 613060 , 657GC327P60 , 657GC39P55 , 6L7291 , 88006 , 880060 , 8N4935 , 9880060 , 9N2894 , 9N3017 , 9S9160 , A010681 , RT338 , RT342 , S450160 , S451160 , Y201365 , Y205566

Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-160 Degrees
  • Temperature 160F Includes seal Alternate Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 160
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Mack RW L 6 Cyl 14.6L 893 14636
Motorad
Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-160 Degrees
  • Temperature 160F Includes seal
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 160
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1984 - Mack RWS L 6 Cyl 18.8L 1150 18848
Motorad
1989 Mack RW Engine Coolant Thermostat 6 Cyl 14.6L Motorad - Heavy Duty Thermostat

P311-566B2CE    880080  New

Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 180F Includes seal
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 180
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1989 - Mack RW L 6 Cyl 14.6L 893 14636
Motorad
1991 Mack RW Engine Coolant Thermostat 6 Cyl 14.0L Motorad - Heavy Duty Thermostat

P311-566B2CE    880080  New

Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 180F Includes seal For Engine Coolant Alternate Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 180
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1991 - Mack RW L 6 Cyl 14.0L 855 14013
Motorad
Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 180F Includes seal
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 180
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1984 - Mack RWS L 6 Cyl 18.8L 1150 18848
Motorad
1992 Mack RW Engine Coolant Thermostat 6 Cyl 11.9L Motorad - Heavy Duty Thermostat

P311-566B2CE    880080  New

0199221A , 027074997 , 027928 , 065561201 , 110110004 , 12301822 , 12302408 , 12302515 , 12TH8D , 13286 , 14508 , 14518 , 14528 , 14538 , 14548 , 146077 , 15228 , 1601-290257 , 169268 , 201737 , 215SB165AP80 , 215SB165BP3 , 215SB165CP3 , 215SB165P3 , 23503825 , 2R2911 , 3002964 , 3076489 , 33408 , 33578 , 34318 , 4548 , 4631418 , 491416 , 4930594 , 4W4794 , 5000667753 , 5102651 , 5148430 , 5245156 , 5N6242 , 613-080 , 657GC327P80 , 6L5851 , 74631823 , 7E9280 , 88008 , 880080 , 8929032 , 9880080 , 9N3711 , 9N3720 , P4548 , RT198 , RT340 , S450180 , S451180 , S452180 , S453180 , S454180

Qty:
In Stock & Ready to Ship
$21.20
Motorad Engine Coolant Thermostat
  • Thermostat-180 Degrees
  • Temperature 180F Includes seal Alternate Temp
  • Heavy Duty Thermostat
  • Product Attributes:
    • Bypass Diameter: 2.87 In
    • Flange Thickness: 0.27 In
    • Installation Tool Included: No
    • Sealing Flange Outside Diameter: 2.87
    • Temperature (Degree): 180
  • Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant.
Brand: Motorad
Additional Fitment Information:
Vehicle Block Engine CID CC
1992 - Mack RW - 6 Cyl 11.9L 728 -
Gates
1983 Mack RWS Engine Coolant Thermostat 6 Cyl 14.6L Gates - Heavy-Duty Thermostat

P311-431A335    33576  New

027074996 , 063837 , 12302405 , 12302513 , 12TH8B , 132-25 , 132-34 , 135675 , 14536 , 146076 , 152154 , 153154 , 153154B , 153154C , 153154E , 176823 , 194245 , 199221D , 199221E , 204586 , 2063-160 , 215SB165P1 , 26-2866 , 26-2916 , 276336R91 , 277296 , 2848264 , 2W7133 , 3002742 , 31776 , 31806 , 32246 , 32506 , 33576 , 356-160 , 359-160 , 450-160 , 4506 , 451-160 , 4631416 , 491417 , 4L7615 , 4N2212 , 4W4011 , 5102112 , 5118264 , 613060 , 6409409 , 657GC39P55 , 6L7291 , 767A5 , 83811 , 8800 , 880060 , 8N4935 , 9N2894 , 9N3017 , 9S9160 , A010681 , DV-236 , DV-336 , MD19366 , RT-338 , RT-342 , S-450-160 , VD111800-2 , VD111800-2W , W356-160 , W359-160 , WT/8 , Y201365 , Y205566 , ZAM-2856 , ZAM-2906

Qty:
In Stock & Ready to Ship
$36.70
Gates Engine Coolant Thermostat
  • 160 Degree; Seal included
  • Heavy-Duty Thermostat
  • Product Attributes:
    • : 2.27
    • Design: Weir-stat
    • Flange Height: 1.7
    • Flange Thickness: .21
    • Gasket Quantity: 0
    • Height: 3.16
    • Height Between Flanges: 1.25
    • Installation Tool Included: No
    • Jiggle Pin Check Valve Quantity: 0
    • Jiggle Pin Weep Hole: No
    • Seal Quantity: 0
    • Sealing Flange Outside Diameter: 2.87
    • Start to Open Temperature:
      • 160
      • 71
  • Suggested Purchase Quantity: 6
    • Most jobs typically require 6 of this item.
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
1983 - Mack RWS DIESEL L 6 Cyl 14.6L 893 14636
Gates
Qty:
In Stock & Ready to Ship
$36.70
Gates Engine Coolant Thermostat
  • 160 Degree; Seal included
  • Heavy-Duty Thermostat
  • Product Attributes:
    • : 2.27
    • Design: Weir-stat
    • Flange Height: 1.7
    • Flange Thickness: .21
    • Gasket Quantity: 0
    • Height: 3.16
    • Height Between Flanges: 1.25
    • Installation Tool Included: No
    • Jiggle Pin Check Valve Quantity: 0
    • Jiggle Pin Weep Hole: No
    • Seal Quantity: 0
    • Sealing Flange Outside Diameter: 2.87
    • Start to Open Temperature:
      • 160
      • 71
  • Suggested Purchase Quantity: 6
    • Most jobs typically require 6 of this item.
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
1984 - Mack RWS DIESEL L 6 Cyl 18.8L 1150 18848
Gates
1986 Mack RW Engine Coolant Thermostat 6 Cyl 14.6L Gates - Heavy-Duty Thermostat

P311-4F457A3    33577  New

0199221B , 0199221C , 027074993 , 027074995 , 065561202 , 110110005 , 12301821 , 12302406 , 12302514 , 132-26 , 132-35 , 132-57 , 14517 , 14537 , 153154F , 1601149 , 176823A , 199221B , 199221C , 2060-170 , 2063-170 , 208627A , 211887A , 215SB165P2 , 23503826 , 26-2867 , 26-2917 , 31777 , 31807 , 32247 , 32507 , 33577 , 356-170 , 359-170 , 380093C , 450-170 , 4507 , 451-170 , 455-170 , 4631417 , 5104832 , 5106240 , 5119826 , 524675C1 , 613070 , 657GC39P70 , 781A5 , 810070 , 8101 , 83814 , 8800070 , 880070 , A026742 , DV-237 , DV-337 , MD19332 , RT-177 , RT-339 , S-450-170 , S-451-170 , S-453-170 , VD10176B , VD111800-1 , VD111800-1W , W356-170 , W359-170 , WT/8S , Y201366 , ZAM-2857 , ZAM-2907

Qty:
In Stock & Ready to Ship
$37.43
Gates Engine Coolant Thermostat
  • 170 Degree; Seal included
  • Heavy-Duty Thermostat
  • Product Attributes:
    • : 2.27
    • Design: Weir-stat
    • Flange Height: 1.6
    • Flange Thickness: .2
    • Gasket Quantity: 0
    • Height: 3.2
    • Height Between Flanges: 1.4
    • Installation Tool Included: No
    • Jiggle Pin Check Valve Quantity: 0
    • Jiggle Pin Weep Hole: No
    • Seal Quantity: 0
    • Sealing Flange Outside Diameter: 2.88
    • Start to Open Temperature:
      • 170
      • 77
  • Suggested Purchase Quantity: 6
    • Most jobs typically require 6 of this item.
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
1986 - Mack RW DIESEL L 6 Cyl 14.6L 893 14636
Gates
Qty:
In Stock & Ready to Ship
$37.43
Gates Engine Coolant Thermostat
  • 170 Degree; Seal included
  • Heavy-Duty Thermostat
  • Product Attributes:
    • : 2.27
    • Design: Weir-stat
    • Flange Height: 1.6
    • Flange Thickness: .2
    • Gasket Quantity: 0
    • Height: 3.2
    • Height Between Flanges: 1.4
    • Installation Tool Included: No
    • Jiggle Pin Check Valve Quantity: 0
    • Jiggle Pin Weep Hole: No
    • Seal Quantity: 0
    • Sealing Flange Outside Diameter: 2.88
    • Start to Open Temperature:
      • 170
      • 77
  • Suggested Purchase Quantity: 6
    • Most jobs typically require 6 of this item.
Brand: Gates
Additional Fitment Information:
Vehicle Fuel Type Block Engine CID CC
1984 - Mack RWS DIESEL L 6 Cyl 18.8L 1150 18848