854837 Propeller | Genuine Volvo Penta Part

🔧 Product Description

Type B is an earlier aluminium Duoprop range for the classic Volvo Penta 280, 290 and DP Aquamatic sterndrives. Volvo Penta has replaced the Type B propeller sets with Type J sets, but the Type B front and rear propellers are still sold individually as spare parts. This is the B8 rear propeller; the matching front propeller is 854829 - no complete set number is listed in this dimension. Every set of Duoprop propellers is designed, tested and manufactured together, so the front and rear propellers of a dimension belong to each other.

🚤 Compatibility

• Engine Family: AD, D, TMD, DP, HS, TAMD, KAD, KAMD

Full model list at the end of this description.

⚙️ Key Features

• Type B, B8 dimension, rear position
• Two three-blade propellers with very thin blade profiles
• For petrol engines and diesels up to 230 hp
• Supersedes 853628
• 2.994 kg
• Matching front is 854829
• Listed for 21 applications across the AD, D, TMD, TAMD, KAD, KAMD, DP and HS series
• Aluminium alloy
• Right-hand rotation
• Aluminium Duoprop propeller for the classic 280, 290 and DP drives.
• Sold individually as a spare part - Type B sets have been replaced by Type J sets.
• No complete set number is listed for the Type B dimensions.
• Material: aluminium
• Fits: 280, 290, DP
• Type: B8
• Set contains: front 854829

🔌 Function

The trailing propeller of a counter-rotating Duoprop pair, turning the opposite way in the front propeller's wash and recovering the swirl left in it as extra thrust, which is what gives a Duoprop its grip and straight tracking.

⚠️ Common Signs of Failure

• Vibration building with engine speed
• Blade tips chipped, bent or folded
• Revs higher than usual for the speed made
• Line or weed wound behind the hub
• Blade faces pitted or eroded

🛠️ Service Notes

• Order by the B8 code marked on the propeller rather than by weight: only 45 grams separate it from the B5 rear 854834
• Check the matching front 854829 for the same damage and keep both propellers at the same dimension
• Do not mix Type A, Type B and Type J propellers on a drive, and use propellers of the same type and size on the drive - or on both drives in a twin installation; Type J is the modern aluminium replacement covering both Type A and Type B sizes, but the sizes do not transfer directly - an A5 is not a J5 - so size an upgrade with your dealer, giving maximum boat speed and engine rpm
• Type J is designed to cover both the Type A and the Type B propellers, but the sizes are not equally transferred. Consult a Volvo Penta dealer for the right size, providing the maximum boat speed and engine rpm if possible.
• Do not mix Type A, B and J propellers. Always use propellers of the same type and size on the drive, or on both drives in twin installations.
• Installation hardware, types A, B, C and J: propeller cone kit M16 872614 or M20 872549, propeller nut 3851334, thrust rings 3858458 and 3858457.

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 854837 → Supersedes 853628

OEM / Related Numbers

• 853628 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta DP-C1, DP-D1, DP-E, DP-G
• Volvo Penta AD31D, AD31D-A, AD31XD
• Volvo Penta KAD42B, KAD42P-A
• Volvo Penta KAMD42B, KAMD42P-A
• Volvo Penta TAMD31M, TAMD31D
• Volvo Penta TAMD41D, TAMD41P
• Volvo Penta AD41D
• Volvo Penta D41D
• Volvo Penta HS1A
• Volvo Penta TAMD42B
• Volvo Penta TMD31D
• Volvo Penta TMD41D