Faq’s
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Common Questions
How do I find my drum brake bearing number?
10″ Drum Brakes
(1600kg Single Axle / 3300kg Tandem Axle)
- Ranger Bearing
- Inner Bearing: L68149/10
- Outer Bearing: L68149/10
- Seal: 402903N
12″ Drum Brakes (2800kg Single Axle / 4400kg Tandem Axle)
- Ranger Bearing
- Inner Bearing: 25580/20
- Outer Bearing: 15123/245
- Seal: 48.5 × 85.62 × 9.53
- Ranger Bearing
12″ Drum Brakes (3000kg Single Axle)
- Ranger Service Kit: TSBK12DRU Kit
- Bearing: ZA-42KWD10U42CA-01LB RA1S5
- Circlip: AU3912
- Grease Cap: AU1901
- Stake Nut: AU2902
What Are My Disc Brake Bearing Numbers?
12″ Disc Brakes (2800kg Single Axle / 4400kg Tandem Axle)
- Replacement Bearing Kit: TSBK12DIJ KIT
- Inner Bearing: 25580/20
- Outer Bearing: 15123/245
- Seal: 82130
12″ Disc Brakes (3000kg Single Axle)
- Service Kit: UNI-SK3T
- Bearing: HU3902-82 OD x 40 W x 42 ID
- Circlip: AU3912
- Grease Cap: AU1901
- Stake Nut: AU2902
How Much Air Pressure Do Caravan Airbags Need?
As a general rule:
- Tandem Axle:
50–80 PSI (Maximum: 100 PSI) - Single Axle:
70–100 PSI (Maximum: 130 PSI)
What Is the Correct Towing Height for My Caravan with Airbags?
The airbag height should measure 250mm ± 25mm, taken from the top to the bottom of the airbag.
How to Identify Airbag-Ready Suspension?

To identify whether your suspension is airbag compatible, inspect the top coil plate mounted on your chassis.
- A square-shaped plate confirms a coil-only setup.
- A rounded extension towards the shock absorbers indicates the system is airbag ready.
How Can I Improve My Caravan’s Stability While Towing?
Key Checks for Better Stability
Make sure the following are properly set on your caravan:
- Towball Weight:
Ensure it is within the recommended specifications - Chassis Level:
Caravan should sit level to the ground - Shock Absorber Bolts:
Tightened correctly to 75 Nm - Wheel Alignment:
Must be within proper specification - Tyre Pressure:
Maintain correct and even tyre pressure - Ride Height (Airbag Systems):
Ensure correct airbag height is maintained
How Often Should I Service My Caravan?
General Recommendation
It is recommended to service your caravan at least once every 12 months or every 10,000–15,000 km, whichever comes first.
How long is my warranty?
RANGER-X Suspension is backed by a 2-year (24-month) warranty, covering all parts and workmanship.
How do I find my drum brake bearing number?
10″ Drum Brakes (1600kg Single Axle / 3300kg Tandem Axle)
- Ranger Bearing
- Inner Bearing: L68149/10
- Outer Bearing: L68149/10
- Seal: 402903
12″ Drum Brakes (2800kg Single Axle / 4400kg Tandem Axle)
- Ranger Bearing
- Inner Bearing: 25580/20
- Outer Bearing: 15123/245
- Seal: 48.5 × 85.62 × 9.53
12″ Drum Brakes (3000kg Single Axle)
- Ranger Service Kit: TSBK12DRU Kit
- Bearing: ZA-42KWD10U42CA-01LB RA1S5
- Circlip: AU3912
- Grease Cap: AU1901
- Stake Nut: AU2902
