Power Trim and Tilt Piston Hydraulic Hose – Fits Volvo Penta 290 DP DPX (Replaces 873229, 854701)

Product Details

This Power Trim and Tilt Piston Hydraulic Hose is engineered for Volvo Penta 290 DP and DPX stern drive systems, including SP-C, SP-C1, DP-C, DP-C1, DP-D1, SP-E, DP-E, and DP-G models. Designed to restore hydraulic function in trim and tilt assemblies, this hose delivers reliable pressure transfer between the pump and piston cylinder.

This aftermarket hose directly replaces Volvo Penta OEM part numbers 873229 and 854701, as well as Sierra 18-2433 and Mallory 9-71703.

• Direct-fit replacement for Volvo Penta 290-series stern drives
• Restores trim and tilt hydraulic pressure in power assist systems
• Complete hose assembly ready for installation

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

Component Type

Hydraulic Trim Hose

Application

Power Trim and Tilt Piston

Fitment

Volvo Penta 290-series stern drives

Replaces OEM

873229, 854701

What's in the Box

• 1 × Hydraulic Trim Hose

Installation Notes

1. Relieve all hydraulic pressure from the trim/tilt system and disconnect power before beginning work.
2. Remove the old hydraulic hose by loosening both end fittings, capturing any residual fluid in a drain pan.
3. Inspect the piston cylinder ports and pump connections for dirt, corrosion, or damage; clean threads as needed.
4. Thread the new hose onto the piston fitting hand-tight, then secure with a wrench—do not overtighten.
5. Attach the opposite end to the pump assembly using the same method.
6. Refill the hydraulic reservoir with manufacturer-specified fluid to the correct level.
7. Bleed air from the system by cycling the trim/tilt mechanism several times until operation is smooth and silent.
8. Inspect both connections for leaks while the system is pressurized; re-tighten if necessary.
9. Test full range of motion (up and down) to confirm proper function before returning to service.

Troubleshooting & FAQ

How do I know if my trim/tilt hose needs replacing?

Signs include visible cracks, weeping fluid at fittings, spongy trim response, or slow/incomplete tilt movement. If the hose feels hard or brittle, replacement is overdue.

Will this hose work on all Volvo Penta 290 drives?

It fits SP-C, SP-C1, DP-C, DP-C1, DP-D1, SP-E, DP-E, DP-G, and DPX models. Always cross-reference your original part number (873229 or 854701) to confirm compatibility.

Can I reuse the old hydraulic fluid?

No. Use fresh, clean hydraulic fluid that meets Volvo Penta specifications to avoid contamination and ensure proper system performance.

Do I need to bleed the system after installation?

Yes. Air in the hydraulic lines will cause erratic operation. Cycle the trim/tilt several times with the reservoir cap loose until no bubbles appear and movement is smooth.

What torque should I use on the fittings?

Tighten fittings snugly by hand, then add approximately one additional turn with a wrench. Over-torquing can damage threads or the hose crimps.

How often should trim/tilt hoses be replaced?

Inspect hoses annually for cracks, abrasion, or leaks. Replace every 5–7 years or sooner if the hose shows signs of wear, especially in saltwater or high-use environments.

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.