Double V-Belt Sea Water Pump Pulley for Volvo Penta 4.3L/5.0L/5.7L Engines

Product Specifications

Compatible Models

Frustrated by Frequent Sea Water Pump Pulley Failures on Your Volvo Penta 4.3L/5.0L/5.7L Engine?

Marine engine operators know the cost: one failed double v-belt pulley halts cooling, triggers overheating alarms, and forces immediate shutdown—costing $2,500+ per day in docked vessel downtime. OEM replacements take 3 weeks to arrive, while low-grade aftermarket pulleys crack under belt tension or corrode after just 120 hours of saltwater exposure. You need reliability—not guesswork.

OEM-Equivalent Quality, In Stock & Ready to Ship

XUNPO supplies this double v-belt sea water pump pulley from ISO 9001-certified factories with 10 years of marine engine parts export experience. Every unit undergoes torque-load testing and salt-spray corrosion validation before shipment—ensuring consistent performance across Volvo Penta’s high-RPM marine applications. With over 10,000 SKUs in our Guangzhou warehouse, this volvo penta water pump pulley ships within 2–5 working days—no waiting for overseas production runs.

Where This Part Works

This pulley operates in demanding marine environments: commercial fishing vessels, charter yachts, tugboats, and offshore support craft where continuous operation under high humidity, salt spray, and variable load cycles is standard. It drives the seawater pump critical for engine cooling—failure directly risks catastrophic head gasket blowout or cylinder liner scoring. Correct fitment and material integrity are non-negotiable for volvo 4.3L water pump pulley and volvo 5.7L engine pulley installations.

Engineering Details That Matter

Made from precision-machined 6061-T6 aluminum alloy—lightweight yet dimensionally stable at operating temperatures up to 120°C. Dual V-grooves maintain exact belt alignment under dynamic tension, eliminating slippage-induced heat buildup. Surface anodized to AA-M21 Class 2 specification for 500+ hours neutral salt spray resistance. Tolerances held to ±0.05 mm on bore diameter and ±0.1° on groove angle—ensuring direct interchangeability with original 21214596 and 3858229 units. No reaming or shimming required during installation.

The Real Cost of Wrong Parts

A $45 counterfeit pulley may save $20 upfront—but causes misalignment, accelerated belt wear, and premature seawater pump shaft failure. Industry data shows such failures increase total maintenance cost by 3.2× due to labor, secondary part replacement, and unscheduled dry-dock time. Genuine OEM-equivalent parts like this double v-belt pulley for volvo penta 4.3L 5.0L 5.7L meet ISO 8502-3 surface cleanliness and SAE J1392 dimensional standards. Total cost of ownership drops when you eliminate repeat repairs and extend service intervals.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually boxed with VCI anti-corrosion paper, molded EPE foam, and reinforced kraft carton
• In-stock items ship within 2–5 working days from Guangzhou
• Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), or sea freight (25–40 days)
• Real-time tracking provided from warehouse dispatch to final delivery
• MOQ: 1 piece—designed for urgent marine maintenance needs

Get Your Double V-Belt Sea Water Pump Pulley Now

Your engine isn’t generating revenue while it’s offline. Send us your Volvo Penta model (e.g., 5.7GL-A) and quantity—we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk order. Stock is allocated daily—delaying means longer wait times during peak season.

Frequently Asked Questions