ONAN 185-6739 .25 MM INJECTOR PUMP SHIM - ONAN Genuine OEM Part
ONAN
- Payment methods
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- SKU:
- ONAN 185-6739
- MPN:
- 185-6739
- Condition:
- New
- Availability:
- Ships (leaves our warehouse) within next business day if in stock


Available Inventory
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Competitive Pricing
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Customer Support
Our team is always ready to answer your questions and provide the best assistance.
Description
- Genuine OEM Cummins Onan part designed for perfect fit and durability
- Precisely adjusts injector pump clearance for accurate fuel delivery
- Enhances engine performance by optimizing injection timing and combustion
- Essential for maintaining system reliability and extending engine life
ONAN 185-6739 .25 MM INJECTOR PUMP SHIM – Fine-Tune Your Power with Unmatched Precision from Onan
This .25 mm injector pump shim, specifically manufactured by Cummins Onan, plays a crucial role in calibrating your generator’s fuel injection system. By ensuring the correct spacing, it promotes efficient combustion and reduces emissions. Engineered to exacting standards, it safeguards the longevity of your power unit. Take control of your generator’s health—secure this precision part today and power your future confidently with unmatched reliability.
Benefit that Connects You to Reliable Performance
- Authentic Onan part guaranteeing compatibility and no compromise on quality
- Maintains optimal injector clearance to improve fuel economy and reduce noise
- Supports accurate fuel metering critical for emission compliance and smooth operation
- Durable materials resist wear under demanding engine conditions
- Designed to uphold original equipment manufacturer standards for trustworthy repair
Details
Category: Injection Pump Shims
Product SKU: ONAN 185-6739
Our knowledgeable support team remains ready to assist you at every step, ensuring you select the exact part required for your generator’s maintenance. We encourage you to reach out via our help center to receive tailored advice. Your satisfaction is vital to us, and we strive to empower your repair process with confidence and care for enduring results.
Returns Information
You may return new, non-used, and unopened items within 30 days of delivery date under a 20% re-stocking fee in case you do not need it anymore or you have ordered a wrong item.
We cannot accept any returns on "Pumps, Motors, Electrical Items & Transmissions" whether the product is used or new, however in rare cases we may allow an exception under a 40% re-stocking fee.
If you need to return an item, please go to our chat located in the lower right corner, select the option “Returns” and follow the steps to submit your request. Please have on your hands pictures of the item, they will be requested. You will shortly receive an answer from our Customer Service Team providing authorization and return instructions. Likewise, if an exception cannot be authorized, you will receive an answer from us. No returns will be accepted in our warehouse without an RMA number (Return Merchandise Authorization).
All return shipping costs are on customer's responsibility and will not be refundable.
Returns are inspected once they arrive. If the inspection determines that the items are used, non-resellable condition, or damaged, the return will be denied and the customer will be contacted to ship the parts back at the customers' request and cost.
Cancellations
You may cancel your order, in whole or in part, only if the part is backordered and it isn't ready to ship. Once an order has been shipped, sent from the supplier to our warehouse, or in the dispatch line, we cannot cancel it. If your order is shipped, you will need to follow our return policy to return the items you no longer want.
If you need to cancel an order or item for any reason, you may submit a cancellation request directly through your account to the "more options" section or contact us by live chat. All the cancellation requests are evaluated before its approval. If you submit a cancellation request out of business hours, on a weekend or holiday, it will be processed on the next available business day.
Please allow for the cancellation to be confirmed, and check your account for updates on the status. The cancellation process usually takes 24-48 hours to be confirmed by email. We will process your cancellation request and issue a refund to your original payment method.
In the event that an item becomes no longer available (NLA), we will cancel it from your order and ship the remaining items to you. We will send you an email notification if we cancel any part of your order.
Some products may contain chemicals known to the State of California to cause cancer or reproductive harm. ⚠️ WARNING: www.P65Warnings.ca.gov