Stainless Steel Exhaust Elbow – Fits Volvo Penta D4-180 D4-210 D4-225 D4-260 D4-300 (Replaces 3884701, 21684826)

Product Details

This Stainless Steel Exhaust Elbow is engineered for Volvo Penta D4-series marine diesel engines, including D4-180, D4-210, D4-225, D4-260, and D4-300 models across A, B, C, D, E, and I variants. Manufactured to OEM-level tolerances, this elbow provides reliable exhaust routing for inboard applications without the heat sensor connection found on some OEM variants.

Direct replacement for Volvo Penta part numbers 3884701, 21684826, 3583856, 22948832, and 22671212.

• Stainless steel construction resists corrosion in marine environments
• Designed for marine diesel inboard engines
• No heat sensor connection (matches OEM 3884701 / 3583856 design)

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Technical Specs

Material

Stainless steel

Application

Marine diesel exhaust system

Engine Type

Inboard

Heat Sensor Connection

No

What's in the Box

• Exhaust Elbow

Installation Notes

1. Ensure engine is off and exhaust system has fully cooled before beginning removal.
2. Disconnect hoses and clamps from existing elbow. Label or photograph connections for reference.
3. Remove mounting fasteners securing the old elbow to the exhaust manifold or riser.
4. Inspect mating surfaces for corrosion, carbon buildup, or damage; clean or address as necessary.
5. Apply appropriate marine-grade gasket sealant or install new gaskets as specified by engine service manual.
6. Position the new stainless steel elbow and hand-tighten all fasteners first.
7. Torque fasteners to manufacturer specifications in a cross-pattern to ensure even seating.
8. Reconnect exhaust hoses using new marine-grade stainless clamps where applicable.
9. Inspect all connections for alignment and clearance. Ensure no contact with wiring or moving parts.
10. Start the engine and check for exhaust leaks at the elbow and hose connections. Re-torque if necessary after initial run.

Troubleshooting & FAQ

How do I confirm this fits my specific D4 variant?

Cross-reference your engine serial number or model designation against the compatibility table above. This elbow fits D4-180, D4-210, D4-225, D4-260, and D4-300 engines across A, B, C, D, E, and I configurations. If your current part number matches 3884701, 21684826, 3583856, 22948832, or 22671212, this is a direct replacement.

Does this elbow include a heat sensor port?

No. This design matches Volvo Penta 3884701 and 3583856, which do not include a heat sensor connection. Verify your existing elbow configuration before ordering.

What gaskets or seals are required?

This listing includes the elbow only. You will need to supply gaskets, seals, and mounting hardware appropriate for your engine model. Consult your service manual or order gaskets separately.

Can this be installed without removing the exhaust manifold?

In most installations, the elbow can be replaced without manifold removal. Access and clearance vary by boat layout, so inspect your specific setup before starting.

How often should an exhaust elbow be replaced?

Inspect annually for corrosion, cracking, or carbon buildup. Typical service life is 3–7 years depending on operating conditions, water quality, and maintenance. Replace if you observe exhaust leaks, discoloration, or structural weakness.

What are common signs of exhaust elbow failure?

Visible exhaust leaks, white or excessive steam from the exhaust, higher-than-normal engine bay temperatures, or coolant loss can indicate elbow corrosion or cracking. Inspect immediately if you notice these symptoms.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

• Verify images/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
• This is an aftermarket replacement, not an OEM component.
• Professional installation is recommended for safety and performance.

About Sea Sierra

• Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
• Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
• Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.