2003 Hummer H1 Steering Parts

This table covers the fluids specified for this steering system. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable. Read more

16 Power Steering Fluid parts are listed for the 2003 Hummer H1, from VALVOLINE, ACDELCO, EDELMANN and 1 other brand. ACDELCO 109243 carries the "Popular" badge.

In the Dexron grade, VALVOLINE and ACDELCO supply 6 parts: grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 109243.

In the Mercon grade, VALVOLINE supplies 1 part: grouped under the catalog's "Mercon" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE 822345.

In the Multi-Vehicle grade, VALVOLINE, EDELMANN and IDEMITSU supply 6 parts: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV3246.

In the Type III (H) grade, ACDELCO supplies 2 parts: grouped under the catalog's "Type III (H)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 109240.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This table covers the Power Steering Pressure hoses. 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

3 Power Steering Pressure Hose parts are listed for the 2003 Hummer H1, from SUNSONG and EDELMANN.

This group includes EDELMANN 91817, SUNSONG 3401351 and SUNSONG 3401432.

This table covers the Power Steering pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit. Read more

6 Power Steering Pump parts are listed for the 2003 Hummer H1, from LARES, TERREPOWER and MAVAL. LARES 12237 carries the "Popular" badge.

In the New grade, LARES and TERREPOWER supply 3 parts: brand-new units rather than rebuilt ones. A representative part number is LARES 12237.

In the Remanufactured grade, TERREPOWER, LARES and MAVAL supply 3 parts: factory-rebuilt units with new wear components. A representative part number is TERREPOWER 7310125.

This group includes LARES 12237, LARES 12678 and TERREPOWER N7310125 and the remaining parts above.

This table covers the Power Steering Pump pulleys. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

4 Power Steering Pump Pulley parts for the 2003 Hummer H1 come from LARES.

Listed part numbers: LARES 156, LARES 158 and LARES 157, plus the other parts above.

This table covers the Power Steering Pump Seal kits. Read more

5 Power Steering Pump Seal Kit parts for the 2003 Hummer H1 come from 3 brands — EDELMANN, FVP and SUNSONG. The "Popular" part is EDELMANN 7918.

Part numbers include EDELMANN 7918 and EDELMANN 7910, among others listed above.

This table covers the seals at the Power Steering Pump Shaft. 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

2 Power Steering Pump Shaft Seal parts for the 2003 Hummer H1 come from 2 brands — EDELMANN and FVP.

This group includes EDELMANN 8709 and the remaining parts above.

This table covers the Power Steering Return hoses. 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

3 Power Steering Return Hose parts for the 2003 Hummer H1 come from 3 brands — EDELMANN, FAMOUS BRAND and SUNSONG.

This group includes EDELMANN 91816, FAMOUS BRAND 36864 and SUNSONG 3401544.

This table covers the Steering gears. Read more

3 Steering Gear parts are listed for the 2003 Hummer H1, from LARES and MAVAL.

New: 1 part, from LARES. A representative part number is LARES 11430.

Remanufactured: 2 parts, from LARES and MAVAL. A representative part number is LARES 1430.

Part numbers include LARES 11430, LARES 1430 and MAVAL 98216M.

This table covers the Steering Gear nuts. Read more

This group shows a single part: LARES 179.