Gaskets and Seals› O-rings, Grommets and Vacuum Caps

Mobil 1

O-ring Kit

$17.71

SKU: 121309

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

This kit includes six O-rings each of part numbers 121312 (OEM 3347937), 121313 (OEM 3330538), 121314 (OEM 3330537), and 121336 (OEM 3347939). It is also a component of larger gasket kits and is offered as a 121309E version with a 1-year warranty.
Show original supplier description
This kit is essential for maintaining the proper function of your fuel injectors, ensuring optimal engine performance and sealing. The kit contains a total of 24 O-rings, with six of each of the following part numbers: 121312 (OEM 3347937), 121313 (OEM 3330538), 121314 (OEM 3330537), and 121336 (OEM 3347939). These components are crucial for creating a reliable seal within the injector system. The PAI 121309 kit is also noted as a component of the larger 131638 (OEM 4955596) and 131906 (OEM 2881767) Gasket Kits. An alternative version, the 121309E, is available and includes a 1-year warranty. PAI Industries, a manufacturer with a focus on U.S.A. production since 1973, produces this kit to ISO9001 standards. They offer a 2-Year Unlimited Mileage Warranty on their Genuine PAI® brand products. Please note that kit components may be allocated or restricted for kit assembly, potentially requiring extended lead times. It is recommended to contact the seller with your specific engine and part details to confirm fitment and availability before placing an order.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMobil 1
Part Number121309
CategoryGaskets and Seals

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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