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JJS 900

1977 Triumph Stag Auto

White Petrol 2997cc
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MOT Status

Valid
Expires27 Oct 2026
Tests26 (17 pass, 9 fail)
Pass rate65.4%

Mileage

54,565 mi
Last recorded54,565 miles
Recorded on28 Oct 2025
Typical for 1977 Triumph Stag Auto60,392 mi

Below or average mileage for this year

4 checks still locked for this Triumph
Stolen
Finance
Write-off
Keepers
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Vehicle Details

RegistrationJJS 900
MakeTriumph
ModelStag Auto
Year1977
ColourWhite
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

17 pass 9 fail
Pass 28 Oct 2025 54,565 miles

oil leak from oil filter

Pass 7 Mar 2024 54,132 miles
Pass 22 Jul 2020 52,278 miles

general underbody corrosion

rear shock lower bushes deteriorated

various bushes detriorating age of vehicle

Pass 5 Jul 2019 52,268 miles

Brake pipe corroded, covered in grease or other material all (1.1.11 (c))

Nearside Rear Shock absorbers has a slightly worn bush (5.3.2 (c))

Offside Front Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Offside Rear Shock absorbers has a slightly worn bush (5.3.2 (c))

general underbody corrosion

Pass 9 Jul 2018 52,234 miles

corrosion at rear floor pan

general corrosion and deterioration under body

rear shock absorber bushes in poor condition

Fail 3 Jul 2018 52,234 miles

Nearside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength chassis rail (5.3.6 (a) (i))

corrosion at rear floor pan

general corrosion and deterioration under body

rear shock absorber bushes in poor condition

Pass 23 Jun 2017 52,035 miles

Nearside Front chassis corroding

Fail 8 Jun 2017 52,035 miles

Nearside rear brake binding (3.7.B.1) DANGEROUS

rear brake application uneven (3.7.B.2) DANGEROUS

Offside Rear tyre deteriorating

Pass 17 Jun 2016 52,007 miles

rear brake flexi hoses deteriorating

nearside wiper deteriorating

rear brake pipes and ferrulls corroding

rear brakes binding slightly

rear floor pan corroding

Pass 13 Mar 2015 51,927 miles
Fail 5 Mar 2015 51,927 miles

Offside Headlamp not working on dipped beam (1.7.5a)

Offside Steering rack gaiter split (2.2.D.2d)

Power steering component(s) leaking (2.3.3b)

Pass 17 Mar 2014 51,678 miles
Fail 14 Mar 2014 51,678 miles

Battery insecure (1.9.1)

Nearside Stop lamp not working (1.2.1b) DANGEROUS

Nearside rear parking brake recording little or no effort (3.7.B.6a) DANGEROUS

Offside Stop lamp not working (1.2.1b) DANGEROUS

Pass 11 Mar 2013 51,287 miles
Fail 8 Mar 2013 51,287 miles

Offside Inner Headlamp insecure (1.7.3)

Rear Exhaust system not adequately supported (7.1.1)

Pass 13 Mar 2012 51,198 miles

rear brake pipes corroding,rear floor pans corroding,slight binding to offside rear brake,front brakes at 24% imbalance.

Fail 9 Mar 2012 51,198 miles

Nearside Headlamp not working on main beam (1.7.5a)

Offside Front position lamp(s) not working (1.1.A.3b)

Offside Headlamp not working on main beam (1.7.5a)

rear brake pipes corroding,rear floor pans corroding,slight binding to offside rear brake,front brakes at 24% imbalance.

Pass 23 Mar 2011 50,787 miles
Pass 30 Mar 2010 50,308 miles

nearside front out rigger corroding,rear floor pan corroding

Fail 24 Mar 2010 50,308 miles

Windscreen washer provides insufficient washer liquid (8.2.3)

nearside front out rigger corroding,rear floor pan corroding

Pass 23 Mar 2009 49,914 miles
Pass 12 Mar 2008 49,496 miles

slight play in offside of rack,some corrosion to nearside and offside front floor pan

Fail 12 Mar 2008 49,496 miles

Centre Exhaust has a part missing (7.1.1a)

slight play in offside of rack,some corrosion to nearside and offside front floor pan

Pass 9 Mar 2007 49,137 miles

n/s/f outrigger and floor corroding †all rear lower arm bushes deteriorating

Fail 9 Mar 2007 49,137 miles

Nearside Headlamp not working on dipped beam (1.7.5a)

n/s/f outrigger and floor corroding †all rear lower arm bushes deteriorating

Pass 8 Mar 2006 48,871 miles

n/s/f chassis outrigger and floor corroding

How Reliable is the Triumph Stag Auto?

Based on 21,225 MOT tests across 2,079 vehicles.

76.9%
Pass Rate
397
Miles/Year
55
Year Lifespan
2,079
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 740
Parking brake: efficiency below requirements 550
Suspension component mounting prescribed area is excessively corroded 491
brake binding 442
Exhaust emissions carbon monoxide content excessive 440
Full Triumph Stag Auto reliability report

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JJS 900 is a 1977 Triumph Stag Auto in White with a 2,997cc petrol engine. This vehicle has been through 26 MOT tests with a personal pass rate of 65.4%.

Across all 1977 Triumph Stag Auto models, the average MOT pass rate is 76.9% with a typical mileage of 60,392 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 Auto fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 740 recorded failures. If you're considering buying JJS 900, it's worth having these areas checked by a mechanic before committing.

The Triumph Stag Auto typically stays on UK roads for around 55 years. At 49 years old, this Triumph Stag Auto is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of JJS 900?

You can check the full history of JJS 900 by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was JJS 900 registered?

JJS 900 is a 1977 Triumph Stag Auto, first registered on 16 March 1977.

Is JJS 900 safe to buy?

The MOT history for JJS 900 shows 26 tests with a 65.4% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does JJS 900 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 JJS 900. 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.