Complete Rocker Arm Set 13257-40F06 for Nissan Pickup 2.4L KA24E SOHC 12V 1989-1997

Product Specifications

Compatible Models

Tired of Rocker Arm Failures on Your Nissan KA24E? Get the Right 13257-40F06 Rocker Arm Set for Reliable Valve Train Operation

Engine downtime on a Nissan 240SX or Hardbody Pickup can cost hundreds per hour in lost productivity — especially when rocker arms wear prematurely or fail due to inconsistent metallurgy. Many buyers report repeated failures from uncertified suppliers, while OEM replacements take weeks and cost up to 45% more. Matching exact part numbers across model years adds further risk without technical verification.

OEM-Equivalent Quality, Ready to Ship

This complete rocker arm set is engineered to match original Nissan KA24E specifications — manufactured in ISO-certified factories, inspected for dimensional accuracy before shipment, and tested for load-bearing performance under simulated valve train cycles. It supports critical maintenance on construction equipment support vehicles, port logistics trucks, and agricultural machinery using the KA24E platform. With 10,000+ SKUs in stock at our Guangzhou warehouse, we ship verified 13257-40F06 rocker arm sets within 2–5 working days.

Where This Part Works

The 13257-40F06 rocker arm set operates in high-cycle, medium-load environments typical of light-duty commercial fleets — including municipal service vehicles, quarry support trucks, and farm utility pickups. Under continuous operation at 4,500 RPM and ambient temperatures up to 95°C, precise valve lift timing depends on consistent rocker arm geometry and surface hardness. This makes correct fitment essential for preventing valve float, exhaust gas recirculation imbalance, and premature camshaft wear — especially in hot, dusty, or high-humidity conditions common across Southeast Asia, the Middle East, and Latin America.

Engineering Details That Matter

Each rocker arm is forged from SAE 1045 carbon steel — not cast iron — providing superior fatigue resistance and tensile strength (≥600 MPa) over OEM-spec equivalents. Surface hardness is maintained at HRC 42–46 after quenching and tempering, ensuring durability against cam lobe contact stress. The pivot bore is precision honed to ±0.005 mm tolerance for minimal side play and uniform oil film distribution. All arms feature a phosphate coating for corrosion resistance during storage and transport, critical for importers in coastal regions. Dimensional validation includes total runout ≤0.03 mm and tip radius matching original Nissan drawings.

The Real Cost of Wrong Parts

A $12 counterfeit rocker arm may save short-term cost — but leads to misadjusted valve clearance, increased combustion chamber temperature, and eventual head gasket failure. Industry data shows non-OEM-equivalent rocker arms cause 1.7× more valve train-related engine rebuilds within 24 months. Total cost of ownership rises sharply: labor for rework (3.5 hours avg), tow fees, rental vehicle replacement, and missed contract deadlines. Using ISO 9001-certified aftermarket parts like this 13257-40F06 rocker arm set reduces TCO by 28% over 3 years versus low-tier alternatives — validated across 120+ countries where XUNPO supplies fleet operators and repair centers.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in branded retail box with molded EPE foam cradle to prevent transit damage
• In-stock items shipped within 2–5 working days after payment confirmation
• Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), or sea freight (25–40 days)
• Real-time tracking number provided upon dispatch, updated until delivery
• Minimum order quantity: 1 piece — designed for urgent repairs and small workshops

Get Your Rocker Arm Set Now

Your Nissan KA24E-powered vehicle shouldn’t sit idle waiting for parts. Send us your part number (e.g., 13257-40F06), exact model year, and required quantity — we’ll issue a competitive quote within 24 hours. First-time clients may request a sample for physical verification before bulk order. Stock availability means faster return to service — every day counts when equipment is down.

Frequently Asked Questions