In warehouse stock

Hot Rods Crankshaft Assembly — Stroker — Yamaha

Hot Rods · #0921-0997 · Bottom End / Engine

Factory assembled and trued to OEM specifications
Drop in replacement crankshaft requires no modification unless noted
CNC machined and dynamically balanced to suit the increased stroke
Add +2.00 mm to +4.00 mm of stroke depending on application
Uses stock piston unless noted

$540.70

In stock. Ships in 2–4 business days · free shipping over $150.

Questions? Call the shop: 801-361-3010

Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014

Description & features8 features

Connecting rod side clearance is 0.30 mm - 0.55 mm.

Heavy-duty +4.00 mm increased engine stroke makes 379 cc.

Requires use of Stroker piston.

Includes:

• Crankshaft

• MAG Crankshaft Bearing

Factory assembled and trued to OEM specifications
Drop in replacement crankshaft requires no modification unless noted
CNC machined and dynamically balanced to suit the increased stroke
Add +2.00 mm to +4.00 mm of stroke depending on application
Uses stock piston unless noted
Main bearings not included
Can be matched with Cylinder Works Big Bore cylinders to get significant displacement and horsepower gains
Not re-buildable as the rods are shorter than OEM.

Specifications12 specs

Color/Finish: Steel
Features: Heavy Duty Crankshaft
Stroke Length: 68.50 mm, 68,50 mm
Displacement: 379 cc
Type: Stroker
Model: 4-Cycle
Material: 4140 Steel
Units: Assembly
Riding Style: ATV
Shipping weight: 10.84 lb
Package size: 16.6 × 9 × 6.5 in
Country of origin: Taiwan

Fitment2 models · Yamaha

Yamaha2 models

YFM350 Raptor2004–2013
YFM350X Warrior1989–2004

Fitment comes from the distributor’s catalog. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.

Part numbers

Salto part #: 0921-0997
Hot Rods part #: 4143

Shipping

In stock at a distributor warehouse. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.

Questions4 answers

Is it in stock?: Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.
How fast will it get to me?: Usually 2–4 business days by ground.
Will it fit my machine?: The distributor lists it for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
Is this genuine Hot Rods?: Yes. It ships new from the same distributors the big online stores buy from — Hot Rods part #4143.