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Engines and Components› Crankshafts and Components

Hot Rods

Hot Rods 02-18 Yamaha YZ 85 85cc Stroker Crankshaft

Name: Hot Rods 02-18 Yamaha YZ 85 85cc Stroker Crankshaft
Brand: Hot Rods
SKU: H063 4134
Price: 316.16 USD
Availability: InStock

$316.95 $316.16 Save $0.79

SKU: H063 4134

Special Order

Ships in 4–6 weeks

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

A displacement-increasing, ready-to-install Hot Rods stroker crankshaft for Yamaha YZ85 models from 2002–2018, supplied complete for straightforward fitting and dependable assembly. This Hot Rods crankshaft is factory assembled, trued and balanced to OEM specifications and designed to increase displacement, torque and horsepower for riders seeking stronger midrange performance. The unit is sold complete with proven Hot Rods connecting rods, top end bearings, and crankshaft webs so you receive a package intended for immediate installation in most applications. High-quality DIN Class 9 (or higher) materials are used throughout. Most installations do not require piston modifications and the crank can often be fitted with the stock piston unless a specific listing note indicates otherwise, making it a practical upgrade for customization projects while preserving reliable balance and fitment standards.

Show original supplier description

Part #: 4134

Premier performance and displacement increasing crankshafts that are sold complete and ready for installation with proven Hot Rods connecting rods, top end bearings and crankshaft webs.

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

Brand	Hot Rods
Part Number	H063 4134

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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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