CarVerify

Free Car Check

ONW 428P

1976 Triumph Stag

Red Petrol 2997cc
Search another vehicle

MOT Status

Valid
Expires25 Mar 2027
Tests20 (15 pass, 5 fail)
Pass rate75%

Mileage

35,579 mi
Last recorded35,579 miles
Recorded on26 Mar 2026
Typical for 1976 Triumph Stag57,333 mi

Below or average mileage for this year

4 checks still locked for this Triumph
Stolen
Finance
Write-off
Keepers
Unlock full report — £4.99
Instant £30k guarantee
or single check £9.99

Not all car check providers offer a guarantee. Don't risk buying from services that can't back their data. CarVerify reports include a £30,000 finance data guarantee.

Vehicle Details

RegistrationONW 428P
MakeTriumph
ModelStag
Year1976
ColourRed
Fuel typePetrol
Engine2,997cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

15 pass 5 fail
Pass 26 Mar 2026 35,579 miles
Pass 12 Jul 2019 35,534 miles
Pass 27 Jun 2018 35,498 miles

Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Slight oil leak from rear differential

Pass 15 May 2017 36,380 miles

Nearside Rear Rear wheel bearing has slight play (2.6.2)

Various oil leaks

Pass 24 May 2016 35,171 miles

Nearside Rear Shock absorber has a light misting of oil (2.7.3)

Nearside Rear wheel bearing has slight play (2.6.2)

slight play in front steering / suspension bushes

Pass 8 Jun 2015 34,983 miles

Nearside Rear Shock absorber has a light misting of oil (2.7.3)

Nearside Rear wheel bearing has slight play (2.6.2)

general play in front suspension bushes

slight play in steering rack bushes

Pass 6 Jun 2014 34,136 miles

Nearside Front wheel bearing has slight play (2.5.A.3c)

Nearside Rear wheel bearing has slight play (2.6.2)

Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7)

Pass 6 Jun 2013 32,071 miles
Pass 6 Jun 2012 29,857 miles
Pass 2 Jun 2011 27,173 miles

engine breather pipe hanging next to exhaust front pipe

engine oil leaks

slight play in front nearside wheel bearing

slight play in rear nearside wheel bearing

Fail 2 Jun 2011 27,173 miles

Offside Rear Hydraulic brake cylinder retaining device insecure (3.6.A.2d)

Offside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

engine breather pipe hanging next to exhaust front pipe

engine oil leaks

slight play in front nearside wheel bearing

slight play in rear nearside wheel bearing

Pass 9 Jun 2010 25,336 miles

Nearside Front Brake hose slightly deteriorated (3.6.B.4d)

Nearside Rear Brake hose slightly deteriorated (3.6.B.4d)

Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

Offside Front Brake hose slightly deteriorated (3.6.B.4d)

Offside Rear Brake hose slightly deteriorated (3.6.B.4d)

Offside Rear Tyre worn close to the legal limit (4.1.E.1)

slight corrosion to n/s/f inner wing seam

Fail 24 May 2010 25,333 miles

Nearside Front Track rod end ball joint has excessive play (2.2.B.1f)

Offside Headlamp aim too low (1.8)

Parking brake: efficiency below requirements (3.7.B.7)

Nearside Front Brake hose slightly deteriorated (3.6.B.4d)

Nearside Rear Brake hose slightly deteriorated (3.6.B.4d)

Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

Offside Front Brake hose slightly deteriorated (3.6.B.4d)

Offside Rear Brake hose slightly deteriorated (3.6.B.4d)

Offside Rear Tyre worn close to the legal limit (4.1.E.1)

advise slight rust on front nearside inner wing seam

Pass 18 Apr 2009 21,968 miles

Front brake disc slightly pitted (3.5.1h)

Nearside outer track rod end joint cover split/missing

Fail 18 Apr 2009 21,968 miles

Front brake disc slightly pitted (3.5.1h)

Nearside outer track rod end joint cover split/missing

Registration plate lamp not working (1.1.5c)

Pass 18 Apr 2008 19,313 miles
Fail 18 Apr 2008 19,313 miles

Nearside Rear wheel bearing has excessive play (2.6.2)

Offside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

Nearside outer track rod end joint cover split/missing

Pass 14 Apr 2007 17,283 miles
Pass 10 Apr 2006 14,512 miles
Fail 6 Apr 2006 14,512 miles

Nearside Rear Rear wheel bearing has excessive play (2.6.2)

Nearside Rear Stop lamp not working (1.2.1b)

Offside Rear position lamp(s) excessively deteriorated so that it is not visible from a reasonable distance (1.1.A.3d)

Nearside Front Suspension arm has excessive play in a ball joint (2.4.G.2) DANGEROUS

Offside Front Suspension arm has excessive play in a ball joint (2.4.G.2) DANGEROUS

How Reliable is the Triumph Stag?

Based on 64,590 MOT tests across 6,070 vehicles.

77.5%
Pass Rate
417
Miles/Year
56
Year Lifespan
6,070
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 2,039
Parking brake: efficiency below requirements 1,744
Suspension component mounting prescribed area is excessively corroded 1,507
Stop lamp not working 1,283
brake binding 1,269
Full Triumph Stag reliability report

Don't risk it. Know before you buy.

Not all vehicle check providers are the same. Some don't offer a data guarantee, which means if their information is wrong, you're on your own. Every CarVerify report is backed by a £30,000 finance data guarantee.

£30k guarantee Instant results Cancel anytime

ONW 428P is a 1976 Triumph Stag in Red with a 2,997cc petrol engine. This vehicle has been through 20 MOT tests with a personal pass rate of 75%.

Across all 1976 Triumph Stag models, the average MOT pass rate is 75.5% with a typical mileage of 57,333 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a Triumph Stag fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 2,039 recorded failures. If you're considering buying ONW 428P, it's worth having these areas checked by a mechanic before committing.

The Triumph Stag typically stays on UK roads for around 56 years. At 50 years old, this Triumph Stag is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of ONW 428P?

You can check the full history of ONW 428P by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was ONW 428P registered?

ONW 428P is a 1976 Triumph Stag, first registered on 3 June 1976.

Is ONW 428P safe to buy?

The MOT history for ONW 428P shows 20 tests with a 75% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does ONW 428P have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on ONW 428P. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.