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Qualifying new parts include 1-year coverage. Review the Warranty Policy section for coverage details, claim steps, and exclusions.
Eligible orders may qualify for returns within 90 days. See the Easy Return Policy section for conditions and next steps.
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| Engine Number | 4B3.9, 6B5.9, 6C8.3, ISC CM2150, B4.5, B3.3, L8.9, B6.7 CM2350 B121B, N14 MECHANICAL, G8.3, GTA8.3 CM558, ISB6.7 CM2250, ISBe4 CM850, ISC CM554, ISL CM554, ISL9 CM2250, ISL9 CM2350 L101, QSC8.3 CM554, QSL9 CM554, C Gas Plus CM556, ISC8.3 CM2250, ISL G CM2 |
| Compatible Engine Brand | For CUMMINS |
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Official answers about compatibility, package contents, specifications, installation, shipping, and warranty for Pressure Regulator Plunger 3945967 for Cummins Engine 6C8.3 B3.3 G8.3 GTA8.3 ISB6.7 L9N N14 QSC9 QSJ8.9 (SKU: ESY88939).
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Every new aftermarket part from us includes a 1-year warranty. Full terms, coverage, and how to make a claim: Warranty Assistance.
We ship to customers around the world. Orders are sent with our standard courier service—trackable, dependable, and easy to work with. On this product page, use Get Estimate under the price to see shipping cost and estimated delivery for your location. For destinations, rules, and full details, read our Shipping Policy Details.
We want you to be confident in your order. If you are not satisfied, you may qualify for a return or refund within 90 days, subject to conditions. See our Easy Return Policy for eligibility, steps, and exceptions.
