Multiquip SD136104700X0 Starter Pinion Clutch Assembly SA6D170A 600SPK

The Multiquip SD136104700X0 Starter Pinion Clutch Assembly SA6D170A 600SPK is a genuine OEM component designed for SA6D170A series equipment. As an authorized Multiquip OEM part, SD136104700X0 is manufactured to the exact specifications required for correct engagement and reliable starter system operation. This assembly is a direct-fit replacement for SA6D170A applications, ensuring the starter drive interfaces properly with the ring gear without modification. When you need a verified OEM part for your SA6D170A equipment, this is the correct replacement assembly.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's exact tolerances for the starter drive assembly, ensuring proper clutch engagement force and pinion travel specific to the SA6D170A application.
• Direct-Fit Replacement — Engineered to mount and connect identically to the original unit on SA6D170A series equipment, allowing straightforward installation with no adaption needed.
• Confirmed SA6D170A Fitment — Verified compatible with SA6D170A equipment; always confirm your model code before ordering to ensure correct application.
• Protects Ring Gear Integrity — A correctly functioning pinion clutch engages smoothly and disengages instantly after start, preventing the starter motor from being driven by the engine and protecting the ring gear from damage.
• Starter System Safety — A worn or failed pinion clutch can cause the starter to remain engaged after engine start, creating a risk of starter motor overspeeding and mechanical failure — replacing with a genuine OEM assembly restores safe, correct operation.

The starter pinion clutch assembly is the component responsible for engaging the starter motor's drive pinion with the engine's ring gear during cranking, then automatically releasing the moment the engine fires. It relies on a one-way overrunning clutch mechanism that transmits torque in one direction to crank the engine, but freewheels immediately when the engine speed exceeds starter speed — preventing the engine from back-driving and destroying the starter. When this assembly wears out, symptoms typically include grinding during startup, failure to engage the ring gear, or a starter that stays engaged after the engine starts, all of which can cause rapid and costly damage to surrounding components.

Have questions about fitment or need help confirming this is the right part for your equipment? Contact the DHS Equipment parts team for assistance.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.