Multiquip 9122116041 Piston Pin DCA-45SSIU2

The Multiquip 9122116041 Piston Pin DCA-45SSIU2 is a genuine OEM component designed for the DCA45SSIU2 ultra-silent diesel generator. This is a direct OEM replacement sourced through Multiquip's authorized parts network, ensuring the correct dimensions and material grade for this specific engine application. Verified fitment for the DCA45SSIU2 means this pin installs as intended with no guesswork on compatibility.

Key Features

• Genuine OEM Piston Pin — manufactured to the exact dimensional tolerances required by the DCA45SSIU2 engine, ensuring proper wrist-pin-to-piston fit and smooth reciprocating motion under load.
• Direct OEM Replacement — engineered to drop into the existing piston and connecting rod assembly without modification, preserving the original engine geometry.
• Confirmed Fitment for DCA45SSIU2 — specifically validated for the Multiquip DCA45SSIU2 ultra-silent diesel generator series.
• Engine Integrity Under Continuous Load — a correctly sized piston pin maintains proper combustion transfer from piston to crankshaft, sustaining consistent power output during extended generator run cycles.
• Hardened Pin Construction — piston pins operate under extreme cyclic stress; OEM material specification ensures the pin resists wear, ovalization, and fatigue cracking that can result from undersized or improperly hardened replacements.

The piston pin — also called a wrist pin — connects the piston to the small end of the connecting rod, transferring combustion force from the piston down through the rod to rotate the crankshaft. It must withstand rapid, repeated impact loads with minimal flex or wear. When a piston pin wears or fails, it causes knocking, increased blow-by, loss of compression, and ultimately engine damage that can take a generator out of service entirely. Replacing it with a correctly specified OEM part restores proper mechanical clearance and protects the surrounding piston and rod bore from accelerated wear.

DHS Equipment supplies genuine Multiquip OEM parts with the fitment accuracy and part number verification that contractors and service technicians depend on. If you need help confirming compatibility for your DCA45SSIU2 generator, contact our parts team directly.

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.