Cummins - Push Rod - 3284377
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The Cummins 3284377 Push Rod is a valve-train service part that transfers motion from the tappet to the rocker arm. Cummins specifies an overall length of 10.8929 in. (276.68 mm) for this part number. Correct length and end geometry are essential when replacing a damaged push rod.
Key Features
- Part number: 3284377
- Component: valve push rod
- Overall length: 10.8929 in. / 276.68 mm
- Used in compatible Cummins B-Series two-valve valve-train arrangements
Engine Compatibility
Applicable to selected Cummins 4B and 6B two-valve engines that specify 3284377. Engine family alone does not establish fitment; confirm the engine serial number, cylinder-head arrangement and listed push-rod number.
Serial Number Fitment Notice
Verify the part against the engine serial number in Cummins QuickServe before ordering. Do not substitute a push rod based only on appearance or nominal length.
When This Part Needs Replacement
Replace a bent, cracked or scored push rod, or one with damaged contact ends. Inspect the associated tappet, rocker and valve components to identify the cause before fitting a replacement.
Installation Notes
Seat both ends correctly, check the related valve-train components and set valve lash to the engine-specific Cummins service procedure. Confirm free movement before returning the engine to service.
Manufacturer Parts Lookup
Cummins QuickServe engine-serial-number parts lookup
Parts Desk Insight
A bent push rod may be a symptom of another valve-train problem. Replacing the rod without checking the surrounding components can leave the cause unresolved.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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