CarVerify

Free Car Check

SSS 855R

1977 Triumph Stag

Blue Petrol 2997cc
Search another vehicle

MOT Status

Valid
Expires9 Oct 2026
Tests19 (14 pass, 5 fail)
Pass rate73.7%

Mileage

64,070 mi
Last recorded64,070 miles
Recorded on10 Oct 2025
Typical for 1977 Triumph Stag60,708 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 £14.99

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

RegistrationSSS 855R
MakeTriumph
ModelStag
Year1977
ColourBlue
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

14 pass 5 fail
Pass 10 Oct 2025 64,070 miles
Pass 5 Oct 2024 62,455 miles
Pass 6 Oct 2023 60,853 miles
Pass 26 Aug 2022 59,453 miles
Pass 7 Sep 2021 58,533 miles
Fail 20 Jul 2021 58,169 miles

Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering (6.1.1 (c) (ii)) DANGEROUS

Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering (6.1.1 (c) (ii)) DANGEROUS

Pass 30 Jul 2020 56,927 miles
Pass 20 May 2019 56,488 miles
Pass 24 May 2018 56,469 miles
Pass 2 May 2017 56,436 miles
Pass 19 May 2016 56,419 miles
Pass 1 May 2015 56,413 miles
Pass 15 May 2014 56,392 miles
Pass 7 May 2013 56,375 miles

Offside Rear wheel bearing has slight play (2.6.2)

Fail 3 May 2013 56,370 miles

Exhaust emissions hydrocarbon content excessive (7.3.B.1b)

Nearside Front Subframe mounting prescribed area is excessively corroded (2.4.A.3)

Offside Rear Rear wheel bearing has excessive play (2.6.2)

Offside Rear Rear wheel bearing rough when rotated (2.6.1)

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

Fail 27 Apr 2013 56,360 miles

Horn not working (1.6.2a)

Offside Rear wheel bearing has slight play (2.6.2)

Fail 6 Oct 2012 56,349 miles

Brakes imbalanced across an axle (3.7.B.5b)

Horn not loud enough to be heard by another road user (1.6.2b)

Nearside Rear Direction indicator not working (1.4.A.2c)

Offside Rear Direction indicator not working (1.4.A.2c)

Rear Hazard warning lamps inoperative (1.4.B.1b)

Nearside Front Lower Suspension arm ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Nearside front brake juddering slightly (3.7.A.2b)

Nearside rear brake juddering slightly (3.7.A.5b)

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

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

Offside Rear wheel bearing has slight play (2.6.2)

Offside front brake juddering slightly (3.7.A.2b)

Offside rear brake juddering slightly (3.7.A.5b)

Rear fog lamp has light sources not illuminating, but not more than 50% (1.3.2b)

Steering column top bearing slightly worn (2.1.2c)

battery insecure

Pass 28 Sep 2011 55,865 miles
Fail 28 Sep 2011 55,863 miles

Exhaust emissions carbon monoxide content excessive (7.3.B.1a)

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

SSS 855R is a 1977 Triumph Stag in Blue with a 2,997cc petrol engine. This vehicle has been through 19 MOT tests with a personal pass rate of 73.7%.

Across all 1977 Triumph Stag models, the average MOT pass rate is 77.7% with a typical mileage of 60,708 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 SSS 855R, 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 49 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 SSS 855R?

You can check the full history of SSS 855R by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was SSS 855R registered?

SSS 855R is a 1977 Triumph Stag, first registered on 2 March 1977.

Is SSS 855R safe to buy?

The MOT history for SSS 855R shows 19 tests with a 73.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does SSS 855R 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 SSS 855R. 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.