21258490 Propeller Kit | 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 number supplies the complete I10 pair, front propeller 21260650 and rear propeller 21657170. 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
• Year Range: Approximately late 2000s onward as the Type I replacement for Type D sets

Full model list at the end of this description.

⚙️ Key Features

• Type I aluminium Duoprop set, dimension I10
• Three-blade front propeller 21260650 and four-blade rear propeller 21657170
• 7.711 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
• Listed for 117 applications across the 4.3, 5.0, 5.7 and 8.1 litre petrol engines, the D3 diesels and DPS-A drives
• 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.
• Type I has straight splines - for DPS and DPS-A drives.
• Material: aluminium
• Fits: DPS, DPS-A (straight splines)
• Type: I10
• Set contains: front 21260650, rear 21657170

📋 Kit Contents

• Front three-blade Type I10 propeller - part number 21260650 - quantity 1
• Rear four-blade Type I10 propeller - part number 21657170 - quantity 1
• Rear propeller nut - part number 21631162 - quantity 1
• Front propeller nut 3851569 and other installation hardware are separate unless specifically included by the supplier

🔌 Function

The counter-rotating front and rear propellers convert drive torque into balanced thrust. Their matched blade geometry improves acceleration, tracking, grip and low-speed manoeuvrability while cancelling most of the propeller side force.

⚠️ Common Signs of Failure

• Hub slip or rubber-bushing damage
• Vibration following impact
• Engine cannot reach specified full-throttle RPM
• Mixed front/rear sizes or incorrect spline type installed

🛠️ Service Notes

• Volvo Penta specifies stainless steel Type F or FH propellers rather than aluminium for six-cylinder diesel engines, engines above 240 hp, or boats capable of more than 38 knots (45 mph)
• Type I sets replace the older Type D sets. Do not mix Type D and Type I propellers, and run the same type and size on the drive, or on both drives in a twin installation
• Do not fit it to a DPS-B drive - those have helical splines and take the Type IH set of the same number
• 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 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 Supersession Chain

• 21324320 earlier rear-propeller reference where shown in older Volvo propeller guides; current rear reference is 21657170

OEM / Related Numbers

• 21260650 front propeller
• 21657170 rear propeller
• 21324320 earlier rear reference where applicable
• 21631162 rear propeller nut included in Type I sets according to the Volvo propeller guide
• 3851569 separate front propeller nut

📦 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