22775503 Reversing Gear Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine complete Volvo Penta HS80AE / HS85AE reversing-gear assembly with a nominal reduction ratio of 2.52:1. The gear provides hydraulic forward, neutral and reverse operation and is supplied as a complete serviced transmission rather than an internal rebuild package.

🚤 Compatibility

• Engine Family: D, HS
• HP Range: 145-480 HP
• Year Range: Approximately 2010s

Full model list at the end of this description.

⚙️ Key Features

• Complete genuine HS80AE / HS85AE reversing-gear assembly
• Nominal reduction ratio 2.52:1
• Hydraulic ahead and astern clutch operation
• Factory-matched housing, shafts, clutches, pump and valve system
• Final selection must be made by transmission model, ratio and serial number
• Engine type: down-angle hydraulic marine reversing gear
• Ratio 2.50:1 / Ratio 2.522:1 (Volvo assembly listing)
• Also supersedes Volvo part numbers 3584017 and 3842637

📋 Kit Contents

• Complete assembled reversing gear - Volvo Penta 22775503
• Internal shafts, bearings, clutch packs, oil pump and control valve are factory assembled and are not supplied as separate items within the kit listing
• Engine adapter, flexible coupling, oil cooler, propeller flange and control hardware are separate unless specifically included in the installation package

🔌 Function

The transmission reduces engine speed to the propeller shaft, provides forward and reverse engagement and transfers engine torque through hydraulically operated clutch packs.

⚠️ Common Signs of Failure

• Delayed or harsh forward / reverse engagement
• Gear oil is dark, contaminated or contains metal
• Hydraulic pressure is low or unstable
• Bearing, gear or clutch noise develops

🛠️ Service Notes

• Work clean and dry — the reversing gear circulates its oil through everything in this kit, so grit introduced during assembly ends up in the gears and bearings
• Fit the new seals, gaskets and locking parts supplied with the kit and discard the corresponding old ones, including any that still look serviceable
• Inspect the flexible coupling, shift linkage, control cable and mountings while the gear is accessible; worn ones will undo the benefit of the new parts
• Refill with the oil grade and quantity specified for your reversing gear, then recheck the level after a short run once the new parts have taken up oil
• Confirm the gear engages fully and cleanly in both ahead and astern and returns properly to neutral before the boat is used

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22775503 → Supersedes 22775495 → Supersedes 3885958

OEM / Related Numbers

• 22775495 earlier number superseded by this part
• 21328166 - related adapter
• 23549677 - related flexible coupling
• 21509615 - related flexible-coupling roller kit
• 22943740 - separate related HS gear with 2.037:1 ratio; not interchangeable by ratio

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-300I-F, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-435I-C, D6-435I-D, D6-435I-E, D6-435I-F
• Volvo Penta D4-300I-F, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-145I-G, D4-175 VG
• Volvo Penta HS85AE