AC Belt - Compressor 100 - Honda Acty Truck HA3, HA4 Models - 1990-1999

This A/C belt fits the Honda Acty Truck HA3, HA4 (1990-1999). It drives the air-conditioning compressor off the crankshaft pulley.

Vehicle Fitment & Compatibility

Confirm your chassis code against the table below before ordering.

Signs you need this A/C belt

• A squeal when the A/C engages
• A glazed, cracked, or frayed belt
• Weak or no A/C drive
• A belt past its service interval - the manual calls for a new belt at 68,000 km (42,000 miles)

Features & Function

• Drives the A/C compressor
• Correct length for this compressor
• Restores reliable A/C drive

Installation Specifications

• Difficulty: Easy.
• Estimated time: about 30 minutes.
• Required tools: A socket set, a wrench for the tensioner, and a belt tension gauge.
• Belt tension: 35-60 kgf on a new belt, 22-40 kgf on a used belt.
• Service interval: replace at 68,000 km (42,000 miles), the same interval as the alternator belt.
• While you are in there: check the A/C fluid with the belt off.

Frequently Asked Questions

Which compressor does this fit?

Compressor 100. Enter your vehicle VIN/chassis number at checkout (example HA4-1234567).

How do I check the A/C belt?

Twist it to inspect for cracks and glazing, then check tension with a gauge. A used belt should read 22-40 kgf. A squeal when the A/C engages usually means the belt is loose or glazed.

How tight should the A/C belt be?

Set a new belt to 35-60 kgf on a tension gauge. A used belt runs at 22-40 kgf, so a fresh belt beds in and loses a little tension. Recheck after a short run. Too loose squeals when the compressor loads, too tight wears the bearings.

How often should the A/C belt be replaced?

Replace it at 68,000 km (42,000 miles), the same interval as the alternator belt, so most people do both together. Check the A/C fluid while the belt is off.

Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated July 2026.