The Multiquip 1G89713120 Exhaust Valve D1503 is a genuine OEM exhaust valve designed for equipment powered by the Kubota D1503 engine. As a factory-sourced component, it meets the exact material and dimensional specifications required by the D1503 engine family. This part is a direct replacement for the original valve and installs without modification into compatible D1503-powered Multiquip equipment. Sourcing the correct OEM valve ensures proper sealing, combustion efficiency, and long-term engine integrity.
Key Features
- OEM-Grade Metallurgy — Manufactured to the same heat-resistant alloy specification as the original, ensuring the valve withstands the thermal stress of continuous engine operation.
- Exact D1503 Engine Fitment — Matched to the Kubota D1503 engine's valve seat geometry and stem dimensions for a drop-in installation with no rework required.
- Compatible with D1503-Powered Equipment — Confirmed fit for Multiquip machines running the D1503 engine; reference model code D1503 when verifying compatibility.
- Combustion Chamber Integrity — A correctly seated exhaust valve maintains proper compression and combustion efficiency; a worn or burnt valve causes power loss, rough running, and potential engine damage.
- Genuine OEM Sourcing — Supplied as a genuine Multiquip OEM part, ensuring the component matches the original design intent and supports long service intervals.
The exhaust valve controls the release of spent combustion gases from the engine cylinder at the end of each power stroke. It opens under precise timing to allow exhaust gases to exit, then seals tightly against its seat to maintain compression during the next cycle. When an exhaust valve wears, burns, or loses its seal, compression drops, the engine runs poorly, and unburned gases can cause further internal damage — making timely replacement with a correctly specified part essential to keeping the engine running at full capacity.
Part Details
| Part Number | 1G89713120 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Exhaust Valve D1503 |
Compatibility & Fitment
| Name | Model |
|---|---|
| D1503 | D1503 |
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.
