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42380300400 Crankshaft Assembly for Stihl TS410 TS420 Cut Off Concrete Saw
$129.79
Sale price
$129.79
Regular price
Available to Order
This Crankshaft Assembly is a replacement engine component compatible with Stihl TS410 and TS420 Cut Off Concrete Saws and matches OEM Part# 4238-030-0400.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
The crankshaft assembly is a complete rotating assembly for Stihl TS410 and TS420 cut-off saw engines. This crankshaft assembly replaces damaged or worn factory units to restore power and balance. Contractors and concrete cutting professionals rely on a precision crankshaft assembly to keep their Stihl saws operating at full performance.
Key Features & Performance
- Forged and machined steel construction for high-load durability
- Precision-ground bearing journals ensure stable rotation
- Includes integrated counterweights to reduce vibration
- Direct OEM replacement matches factory timing and stroke
- Ready to install with factory connecting rod (if included)
Fitment & Compatibility
- Stihl TS410 Cut Off Concrete Saw
- Stihl TS420 Cut Off Concrete Saw
Common Uses
- Engine rebuilds after bearing or seizure failure
- Replacing bent or cracked crankshafts in concrete saws
- Restoring compression and power in high-hour TS410/TS420 units
- Performance maintenance for professional demolition and cutting crews
Technical Specifications
- Part Number(s): 4238-030-0400
- Product Type: Crankshaft Assembly
Frequently Asked Questions
Q: Does this crankshaft assembly include the connecting rod and needle bearing? A: Many assemblies include the connecting rod, but confirm the listing details; if only the crankshaft with counterweights is supplied, reuse or purchase the rod separately.
Q: Is this a genuine Stihl factory part? A: This is an aftermarket replacement manufactured to meet OEM specifications; it is not an original Stihl component but provides equivalent fit and function.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.