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TRW PEV221618R101 is the cast aluminium power steering pump with a splined drive shaft, a two bolt flange and two capped ports on the side. It is used on Cummins ISX engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Power Steering Pump |
| Replaces | TRW PEV221618R101 |
| Type | Engine driven power steering pump |
| Drive | Splined shaft, two bolt flange |
| Engine | Cummins ISX |
| Condition | New, aftermarket |
| Stat. HS-Code | 841360 |
| Country of Manufacture | China |
| TRW Part No.(SPM Part No.) |
|---|
| PEV221618R101(SPM-HEP-5177) |
Heavy or jerky steering
A worn steering pump cannot hold flow at idle, so the steering goes heavy at low engine speed or kicks as the revs change.
Whine and foaming
A whining pump or foam in the reservoir means air is getting in or the pump is wearing. Check the hoses and fluid level first, then the pump.
Leaks at the shaft seal
Oil weeping from the drive end means the shaft seal has failed, and the pump usually follows soon after.
Fitting tips
Flush the steering circuit, fit a new filter, fill the pump before starting and bleed the air out by turning lock to lock with the engine idling.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay, aftermarket seller | USD 126.50 | 2 Nov 2026 |
| Amazon (Raodelupe-Tech) | USD 145.30 | 2 Nov 2026 |
| SINOCMP | USD 229.00 | 2 Nov 2026 |
| Spare Part Mart | USD 99.60 | Today |
Our price of USD 99.60 is 21% to 57% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it was made for the Cummins ISX. Check the old power steering pump is marked PEV221618R101 or one of the cross references, because makers change parts between serial ranges.
On the Cummins ISX, often 5,000 to 10,000 hours with clean fluid, much less with dirt or air in the system. It is usually changed on condition, not by hours.
Leaks from the seal or weep hole, noise or whining, overheating, or falling pressure or flow under load.
Yes. Fill the pump and its suction line with clean fluid before the first start. Running it dry, even for a few seconds, can score it.
Most failures come from contamination, cavitation from a restricted inlet, or running low on fluid. Check the inlet and the fluid before fitting the new power steering pump.
No. It is an aftermarket power steering pump made to replace the TRW PEV221618R101. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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