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Engines and Components› Camshafts and Valvetrain

Kibblewhite Precision Machining

Engine Spring Kit

$76.99 $69.29 Save $7.70

SKU: 30-4021

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Kibblewhite Precision Machining Engine Spring Kit is a valve spring kit designed for 1981-1987 Honda ATC ATVs. This kit includes springs, titanium upper collars, and base washers. Original keepers are reused for installation.
Show original supplier description
The Kibblewhite Precision Machining Engine Spring Kit (Mfg Part #: 30-4021) is specifically designed for use in 1981-1987 Honda ATC ATVs, providing essential components for engine valve train maintenance. Each kit is complete for one motor and includes four springs, two titanium upper collars, and two base washers. Installation requires the reuse of original keepers. The product details also mention that for Center Intake valves, Part No. 18-1552 should be used. Instructions are included with the kit. This item is subject to manufacturer price control, meaning it is excluded from promotions and discounts as per Kibblewhite's advertising policy.

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

BrandKibblewhite Precision Machining
Part Number30-4021
CategoryEngines and Components

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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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