The Wacker Neuson Exhaust Valve is a genuine OEM exhaust valve designed for the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loader series. As a direct OEM part, the is manufactured to the exact specification of the original component, ensuring a drop-in fit with no guesswork on compatibility. This valve is the correct replacement for all listed BL700-series backhoe loaders, covering both standard and EX configurations. Keeping this component in good working condition is essential to engine efficiency and long-term reliability across the full range of compatible machines.
Key Features
- OEM Valve Geometry and Metallurgy — Manufactured to the exact stem diameter, head profile, and heat-resistant alloy spec of the original, ensuring correct seating and sealing in the cylinder head.
- Direct Head Replacement — Matches the original valve guide bore and seat angle for straightforward installation without machining or adjustment.
- Broad BL700-Series Coverage — Confirmed fitment across BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loaders.
- Maintains Engine Compression and Exhaust Scavenging — A properly functioning exhaust valve ensures combustion gases exit cleanly on each cycle; a worn or burnt valve causes compression loss, rough running, and increased fuel consumption.
- Emission and Engine Compliance — Correct valve function is critical to maintaining proper exhaust flow and meeting the engine's designed emission performance — important for machines operating under regulated site or environmental conditions.
The exhaust valve sits in the cylinder head and opens at the end of each combustion cycle to release burned gases from the cylinder before the next intake stroke begins. It must seal completely when closed to maintain compression, and open at precisely the right moment to allow efficient exhaust scavenging. When an exhaust valve wears, burns, or loses its seat seal, the engine loses compression, performance drops noticeably, and left unaddressed, internal engine damage can follow.
Part Details
| Part Number | 5100033721 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exhaust Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BL744ch Backhoe Loader | BL744ch | 5100031800 |
| BL744h Backhoe Loader | BL744h | 5100031801 |
| BL742h Backhoe Loader | BL742h | 5100031802 |
| BL744c Backhoe Loader | BL744c EX | 5100031803 |
| BL744 EX Backhoe Loader | BL744 EX | 5100031804 |
| Backhoe Loader | BL742 EX | 5100031805 |
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.
