Multiquip 12293 Main Bearing Cap Bolt

The Multiquip 12293 Main Bearing Cap Bolt is a genuine OEM fastener designed for the C30HDNI, C30HDNI Precision, C30HDNI Zenith, and C30HDN concrete pump models. As a direct OEM replacement, this bolt meets Multiquip's original specifications for thread pitch, tensile strength, and dimensional accuracy — ensuring a correct, secure fit in the main bearing cap assembly. It is the exact part specified for these machines and ships direct from authorized Multiquip inventory at DHS Equipment.

Key Features

• Genuine OEM Tensile Specification — Manufactured to the original torque and clamping load requirements critical for main bearing cap retention, not a generically sourced fastener.
• Direct Drop-In Replacement — Matches the original thread form, shank diameter, and head dimensions for straightforward installation into the bearing cap bore on compatible pump models.
• Confirmed Fitment — Verified for use on C30HDNI, C30HDNI Precision, C30HDNI Zenith, and C30HDN Mayco concrete pumps.
• Crankshaft Stability Under Load — A correctly torqued main bearing cap bolt maintains proper bearing clearance, preventing crankshaft movement and protecting the pump's lower end during high-cycle operation.
• Authorized Multiquip Part — Sourced through official Multiquip distribution channels, so the part number, specification, and packaging are verified before it ships.

The main bearing cap bolt clamps the bearing cap tightly against the engine block, securing the crankshaft main bearings in position and maintaining the precise clearances needed for smooth rotation. Without proper clamping force — whether from a stretched, damaged, or incorrect bolt — the bearing cap can shift under the cyclic loads of pump operation, accelerating bearing wear and risking crankshaft damage. Replacing a worn or compromised bolt with the correct OEM fastener restores the designed clamping integrity and protects the long-term health of the pump's lower end assembly.

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.