1995 Hummer H1 Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

24 Coolant / Antifreeze parts are listed for the 1995 Hummer H1, from VALVOLINE, PEAK, PRESTONE and 2 other brands. FVP MV5050GAL carries the "Popular" badge. 16 parts fit every engine; the other 8 are engine-specific.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, FVP, PRESTONE, VALVOLINE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Heavy Duty section lists 3 options from VALVOLINE and PRESTONE — rated for severe service. VALVOLINE ZXG051 is listed in this group.

The Premium section lists 4 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 12 options from VALVOLINE, PEAK and AISIN — built to original-equipment specification. VALVOLINE 888374 is listed in this group.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

3 Coolant Hose / Pipe parts are listed for the 1995 Hummer H1, from CONTINENTAL, ACDELCO and GATES.

Economy: 1 part, from CONTINENTAL. A representative part number is CONTINENTAL 50277.

The Standard Replacement section: 2 options from ACDELCO and GATES. ACDELCO 24234L is listed in this group.

Listed part numbers: CONTINENTAL 50277, ACDELCO 24234L and GATES 21781.

This table covers the adapters used to pressure-test this cooling system. Read more

2 Cooling System Tester Adapter parts are listed for the 1995 Hummer H1, from GATES and MOTORAD.

Listed part numbers: GATES 31413 and MOTORAD 3003.

This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

5 Radiator Cap parts are listed for the 1995 Hummer H1, from GATES, MOTORAD and ULTRA-POWER. MOTORAD T16 carries the "Popular" badge.

The Locking Replacement section lists 2 options from GATES and MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. GATES 31518 is listed in this group.

The Standard Replacement section: 3 options from MOTORAD, GATES and ULTRA-POWER. MOTORAD T16 is listed in this group.

This group includes MOTORAD T16, GATES 31518 and MOTORAD ST16 and the remaining parts above.

This table covers the Radiator Fan clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc. Read more

10 Radiator Fan Clutch parts are listed for the 1995 Hummer H1, from HAYDEN, FOUR SEASONS, FVP and 2 other brands. HAYDEN 2734 carries the "Popular" badge.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

5 Radiator Hose parts for the 1995 Hummer H1 come from 3 brands — ACDELCO, GATES and CONTINENTAL. The "Popular" part is CONTINENTAL 60880.

Standard Replacement: 4 parts, from GATES, CONTINENTAL and ACDELCO. A representative part number is CONTINENTAL 60880.

In the Universal Hose (Straight, Bulk) grade, ACDELCO supplies 1 part: grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 31009.

This group includes CONTINENTAL 60880, ACDELCO 22103M and GATES 20974 and the remaining parts above.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

17 Temperature Sender / Sensor parts are listed for the 1995 Hummer H1, from STANDARD MOTOR PRODUCTS, WELLS, NTK and 7 other brands. NTK EF0008 carries the "Popular" badge. 6 parts fit every engine; the other 11 are engine-specific.

Economy: 6 parts, from UNITED MOTOR PRODUCTS, NTK, STANDARD MOTOR PRODUCTS and 2 other brands. A representative part number is NTK EF0008.

In the Full Service Kit grade, WALKER PRODUCTS supplies 1 part: grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. A representative part number is WALKER PRODUCTS 21191012.

The Standard Replacement section: 10 options from WELLS, STANDARD MOTOR PRODUCTS, ACDELCO and 4 other brands. ACDELCO 1551107 is listed in this group.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

8 Thermostat parts for the 1995 Hummer H1 come from 2 brands — MOTORAD and GATES. The "Popular" part is MOTORAD 7332180.

Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7332180.

Standard Replacement: 3 parts, from MOTORAD and GATES. A representative part number is GATES 33924.

3 further parts sit outside the graded sections, with the same engine-level match.

Part numbers include MOTORAD 7332180, MOTORAD 7332195 and GATES 33924, among others listed above.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

17 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1995 Hummer H1, from FEL-PRO, MAHLE / CLEVITE, VICTOR REINZ and 2 other brands. FEL-PRO 35062 carries the "Popular" badge.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

18 Water Pump parts for the 1995 Hummer H1 come from 8 brands — FVP, US MOTOR WORKS, SKP and 5 other brands. The "Popular" part is ACDELCO 252719.

The Economy section: 8 options from FVP, SKP, US MOTOR WORKS and 1 other brand. FVP US5049 is listed in this group.

The High Volume / Pressure section lists 2 options from FVP and US MOTOR WORKS — grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. FVP US5049H is listed in this group.

Standard Replacement: 8 parts, from ACDELCO, DAYCO, GATES and 1 other brand. A representative part number is ACDELCO 252719.

This table covers the Water Pump & Fan Clutch assemblies. Read more

This group shows a single part: US MOTOR WORKS MCK1036.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

12 Water Pump Gasket parts are listed for the 1995 Hummer H1, from FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ. FEL-PRO 5152 carries the "Popular" badge.