ONAN 185-2057 CYLINDER HEAD GASKET SHIM - ONAN Genuine OEM Part
ONAN
- Payment methods
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- SKU:
- ONAN 185-2057
- MPN:
- 185-2057
- Condition:
- New
- Availability:
- Ships (leaves our warehouse) within next business day if in stock


Available Inventory
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Competitive Pricing
Enjoy competitive rates and great deals on every order.
Customer Support
Our team is always ready to answer your questions and provide the best assistance.
Description
- Certified Genuine ONAN part engineered for perfect compatibility
- Optimizes cylinder head alignment ensuring reliable engine sealing
- Contributes to maintaining consistent compression and reducing leaks
- Ensures long-term generator performance and operational safety
ONAN 185-2057 CYLINDER HEAD GASKET SHIM - Precision Engineered Support by ONAN's Legacy
This cylinder head gasket shim is a fundamental component crafted to maintain optimal alignment of the cylinder head within your Cummins/Onan generator engine. Its precise thickness control helps prevent leaks and prolong engine life, ensuring your power system operates efficiently when it matters most. Ready to secure optimal engine health? Add the ONAN 185-2057 to your cart and experience outstanding reliability.
Authenticity and Performance You Can Feel
- Manufactured to original OEM specifications ensuring exact fitment
- Enhances engine compression integrity for consistent power output
- Supports emissions control by maintaining tight gasket seals
- Durable material resists wear under demanding operational conditions
Details
Category: Shims
Product SKU: ONAN 185-2057
We are committed to providing knowledgeable guidance to help you select the right ONAN replacement parts for your generator needs. Our help center is always available for your inquiries, ensuring you make informed decisions with confidence. We genuinely wish you a seamless repair experience that restores your generator’s reliable performance for many years to come.
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