Turn your oil pump and keep engine oil circulating with the Melling Oil Pump Intermediate Shaft IS-55E, a stock-replacement drive shaft that transmits rotation to the oil pump on a huge range of V6 and V8 engines. It's a direct-fit replacement for many vehicles, such as the 1999-2013 Chevrolet Silverado 1500 [V6-4.3L] and 1988-1999 Chevrolet C1500 and K1500 [V8-5.0L, V8-5.7L], plus Buick, Cadillac and many more — check the Buyer's Guide tab for your exact year, make, model and engine.
Because the old shaft can suffer metal fatigue, cracking or twisting even when it looks fine, Melling recommends fitting a new engine oil pump intermediate shaft with every oil pump replacement.
- Stress-proof steel shaft: measures 151.35 mm (5.960 in) long with a 12.25 mm (0.482 in) shaft diameter.
- Standard-replacement grade: built to OE-level tolerances for consistent, durable wear.
- Precision-engineered for proper fit and long-life performance.
- Made in the United States.
Interchange: 61-46E · BIS-55E · DIS-55E · TS-55-E · 601-1409 · OPI-55-E · 224-6146E · WG-164X
6146E · BIS55E · DIS55E · TS55E · 6011409 · OPI55E · 2246146E · WG164X · 3739826 · HIS55E · 53010
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the oil pump intermediate shaft do?
It links the engine's drive to the oil pump and transmits rotation to spin the pump, so oil is drawn up and circulated. The IS-55E is a stock-replacement version of that shaft.
Should I replace the shaft when I install a new oil pump?
Melling recommends it. The old shaft can develop metal fatigue, cracking or twisting damage even when it looks fine, so fitting a new shaft with every oil pump install is good practice.
What is the IS-55E shaft made of and how big is it?
It uses a stress-proof steel shaft measuring 151.35 mm (5.960 in) long with a 12.25 mm (0.482 in) shaft diameter.
Will this shaft fit my vehicle?
It fits many vehicles, including the 1999-2013 Chevrolet Silverado 1500 [V6-4.3L] and many Chevrolet, Buick and Cadillac models. Check the Buyer's Guide tab for your exact year, make, model and engine.
Where is the IS-55E made?
It is made in the United States and listed as a standard-replacement grade shaft.
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