Genuine GMC K3500 Coolant Reservoir Cap

Coolant Overflow Reservoir Cap

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5 Coolant Reservoir Caps found

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GMC K3500 Cap,P/S Pump Reservoir
Part Number: 26095243
$12.60 MSRP: $15.26
You Save: $2.66 (18%)
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Product Specifications
- Other Name: CAP, Power Brake Booster; Cap, Reservoir Cap
- Replaces: 07813194, 07834183, 26042498, 7834183, 7813194, 26009893, 26010563
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-2000 GMC K3500 | K3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, K3500 CREW CAB LONG WHEELBASE, K3500 CREW CAB SHORT WHEELBASE, K3500 EXTENDED CAB, K3500 REGULAR CAB | 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 6.5L Diesel, 8 Cyl 7.4L
- 1985-1986 GMC K3500 | CAB CHASSIS 135.5, CAB CHASSIS 159.9, CREW CAB, REGULAR CAB | 6 Cyl 4.8L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L
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GMC K3500 Cap,Radiator Filler
Part Number: 15982188
$11.54 MSRP: $21.78
You Save: $10.24 (48%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: CAP, Radiator Tank; Filler Cap, Radiator Cap
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC K3500 | K3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, K3500 CREW CAB LONG WHEELBASE, K3500 CREW CAB SHORT WHEELBASE, K3500 EXTENDED CAB, K3500 REGULAR CAB | 8 Cyl 5.7L, 8 Cyl 7.4L
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GMC K3500 Cap,Radiator Surge Tank
Part Number: 25661994
$8.93 MSRP: $16.85
You Save: $7.92 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: CAP, Engine Coolant Recovery
- Replaces: 15977333
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-2000 GMC K3500 | K3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, K3500 CREW CAB LONG WHEELBASE, K3500 CREW CAB SHORT WHEELBASE, K3500 EXTENDED CAB, K3500 REGULAR CAB | 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 6.5L Diesel, 8 Cyl 7.4L
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GMC K3500 Coolant Recovery Reservoir Cap
Part Number: 15989074
$12.72 MSRP: $22.82
You Save: $10.10 (45%)
Product Specifications
- Other Name: CAP, Engine Coolant Recovery
- Replaces: 15695491, 14094966
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-2000 GMC K3500 | K3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, K3500 CREW CAB LONG WHEELBASE, K3500 CREW CAB SHORT WHEELBASE, K3500 EXTENDED CAB, K3500 REGULAR CAB | 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 6.5L Diesel, 8 Cyl 7.4L
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GMC K3500 Cap, Coolant Recovery Reservoir
Part Number: 15630112
Product Specifications
- Other Name: CAP, Engine Coolant Recovery
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 GMC K3500 | CAB CHASSIS 135.5, CAB CHASSIS 159.9, CREW CAB, REGULAR CAB | 6 Cyl 4.8L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L

GMC K3500 Coolant Reservoir Cap

GMC K3500 Coolant Reservoir Cap locks in critical pressure so coolant stays where it belongs and the engine stays protected. This provides owners with an easy but effective defense against heat and corrosion. Built around a precisely tuned spring valve, this Coolant Reservoir Cap maintains a steady state during high temperature climbs and smoothly draws fluid back as the block cools. This maintains an oxygen-free environment, warding off rust inside every K3500 cooling passage. Whether the earlier all-metal design or the later composite style is present, each Coolant Reservoir Cap has identical pressure ratings, providing consistent reliability over the entire K3500 production span. Every GMC K3500 owner can rely on the Coolant Reservoir Cap to provide consistent performance during demanding towing sessions. Drivers love the fact that this little piece of equipment installs quickly, is relatively cheap, and protects the more costly engine components, explaining why GMC pickups have earned their reputation for toughness mile after mile. A tight Coolant Reservoir Cap also minimizes the possibility of slippery spills on the road for the safety of the truck and other traffic. Compatibility extends to gasoline and diesel versions of the K3500, including work-oriented regular cabs and friendly crew cabs, so one dependable Coolant Reservoir Cap solution covers a wide range of trims without fuss. Routine checks ensure the gasket remains supple and the seal unbroken, allowing the Coolant Reservoir Cap to maintain proper system pressure that assists fans, pumps, and thermostats to work at peak efficiency. Because the owners of GMC trucks often take their rigs through the rigors of hauling, towing, and off-road conditions, the reliable performance of this Coolant Reservoir Cap is a steady ally. Seasoned drivers of the K3500 know sticking with genuine GMC hardware is a safeguard on durability value. The pressure-matched valve, corrosion-resistant materials, and perfect fit to every GMC cooling tank give peace of mind every time the key turns.

Each OEM GMC K3500 Coolant Reservoir Cap we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.