21260647 Propeller | Genuine Volvo Penta Part

🔧 Product Description

Type I is the aluminium Duoprop range for Aquamatic DPS and DPS-A sterndrives, the drives with straight propeller-shaft splines. The patented blade geometry and large active propeller diameter give optimal performance and fuel efficiency over the entire speed range, together with smooth running, excellent grip and manoeuvrability. Squeeze casting and a special high-strength aluminium alloy make Type I propellers stronger and more durable than traditional die-cast propellers, and four layers of paint give excellent anti-corrosion performance. This is the I7 front propeller; the matching rear propeller is 21657167, and the pair is also listed as set 21258487. 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: D, V, DPS
• HP Range: 130-220 HP

Full model list at the end of this description.

⚙️ Key Features

• Type I aluminium Duoprop front propeller, dimension I7
• Three-blade left-hand rotation
• Pairs with rear propeller 21657167; the complete set is 21258487
• 4.15 kg
• Squeeze cast in high-strength aluminium alloy and finished in four layers of paint
• For DPS and DPS-A drives with straight propeller-shaft splines
• Do not mix propeller series on the same drive, and fit matching sets on twin installations
• Engineered to optimize performance, durability and comfort.
• Patented blade geometry, large active propeller diameter.
• Strong and durable high strength aluminium alloy.
• Three-blade front propeller and four-blade rear propeller.
• Type I has straight splines - for DPS and DPS-A drives.
• Material: aluminium
• Fits: DPS, DPS-A (straight splines)
• Type: I7
• Set contains: set 21258487, rear 21657167

📋 Kit Contents

• 1 × Type I7 three-blade front aluminium propeller - Part Number: 21260647
• Matching rear propeller 21657167, complete set 21258487, propeller nuts, tools and installation consumables are not included

🔌 Function

The front propeller runs in cleaner water ahead of the rear propeller, makes thrust of its own and conditions the flow for the matched rear propeller. The pair splits the torque across the drive for efficient acceleration, cruising and manoeuvring.

⚠️ Common Signs of Failure

• New vibration or pulsing under load
• Engine unable to reach specified wide-open-throttle rpm
• Engine over-revving because the propeller load is too light
• Bent, chipped, cracked or heavily corroded blades
• Hub movement or propeller-shaft noise following impact

🛠️ Service Notes

• Renew or refurbish as a matched pair with the rear propeller 21657167 - a damaged half against a new one leaves the drive out of balance
• This front propeller and the I7 rear propeller 21657167 both publish 4.15 kg, so the figure will not tell you which half of the set you are holding
• Check the drive anodes and the propeller shaft seal, and clear any line from behind the hub, while the propeller is off
• Always use type F or FH stainless steel propellers in 6-cylinder diesel engines or engines exceeding 240 hp or capable of speeds above 38 knots (45 mph).
• Type I sets replace the earlier Type D sets. Do not mix Type D and Type I propellers - always use propellers of the same type and size on the drive, or on both drives in twin installations.
• Type IH is the matching range for DPS-B drives, which have helical (spiral) splines. A Type I propeller will not fit a DPS-B drive.
• Installation hardware for types D, I, IH, F and FH: rear propeller nut 21631162 (included in Type I propeller sets), front propeller nut 3851569.

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21258487 - Complete Type I7 front-and-rear propeller set
• 21657167 - Matching Type I7 rear propeller
• 21631162 - Rear propeller nut
• 3851569 - Front propeller nut
• 3862797 - Front propeller-nut tool
• 3855516 - Combined front/rear propeller tool

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 8.1GiC-J, 8.1GiC-JF, 8.1GiCE-JF, 8.1GiCE-J, 8.1GiCE-M, 8.1GiCE-P, 8.1GiC-Q, 8.1GiCE-Q, 8.1GiE-KF, 8.1GiE-K, 8.1GiE-M, 8.1GiE-P, 8.1Gi-J, 8.1Gi-JF, 8.1GXiE-K, 8.1GXiE-KF, 8.1GXiE-M, 8.1GXiE-P, 8.1GXi-J, 8.1GXi-JF, 8.1OSi-J, 8.1OSi-JF, 5.7GXiC-J, 5.7GXiC-JF, 5.7GXiCE-JF, 5.7GXiCE-J, 5.7GXiCE-M, 5.7GXiC-P, 5.7GXiCE-P, 5.7GXi-J, 5.7GXi-JF, 5.7GXiE-KF, 5.7GXiE-K, 5.7GXiE-M, 5.7GXiE-P, 5.7GXi-P, 5.7OSi-300-J, 5.7OSi-300-JF, 5.7OSXi-J, 5.7OSXi-JF, 5.7Gi-300-J, 5.7Gi-300-JF, 5.7GiCE-300-M, 5.7GiE-300-N, 5.7Gi-300-N, 5.7GiE-300-P, 5.7Gi-300-P, 5.7GiC-300-J, 5.7GiCE-300-J, 5.7GiCE-300-JF, 5.7GiC-300-JF, 5.7GiC-300-P, 5.7GXiE-N, 5.7GXi-N, 5.7GiE-300-K, 5.7GiE-300-KF, 5.7GiE-300-M, 5.7GiCE-300-P, 4.3OSi-J, 4.3OSi-JF, 5.0GiC-J, 5.0GXiCE-JF, 5.0GXiCE-J, 5.0GXiC-JF, 5.0GXiCE-M, 5.0GXiC-P, 5.0GXiCE-P, 5.0GXi-J, 5.0GXi-JF, 5.0GXiE-K, 5.0GL-J, 5.0GL-JF, 5.0GXiC-J, 5.0GXiE-KF, 5.0GXiE-M, 5.0GXiE-N, 5.0GXi-N, 5.0GXiE-P, 5.0GXi-P, 4.3Gi-200-R, 4.3GI-Q, 4.3GL-J, 4.3GL-JF, 4.3GL-P, 4.3GXiE-M, 4.3GXi-P, 4.3GXiE-P, 4.3GXi-Q, 4.3GXiE-Q, 4.3GXi-J, 4.3GXi-JF, 4.3Gi-200-S
• Volvo Penta D3-130I-C, D3-220I-G, D3-130A-C, D3-160A-C, D3-140A-G, D3-170A-G, D3-200A-G, D3-220A-G, D3-140I-G, D3-190A-C, D3-170I-G, D3-200I-G, D3-160I-C, D3-190I-C, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H
• Volvo Penta DPS-A, DPS-A OXI
• Volvo Penta V6-200-A