13th Mar, 2024 13:00

Imperial War Museum | Duxford, Cambridgeshire

Lot 145

1972 Porsche 911 T 2.4 Litre 'Oel Klappe'
Believed to be 1 of just 106 RHD examples made

Sold for £65,250

(including buyers premium)

Lot details

Registration No: RYY 92K
Chassis No: G112500933
MOT: Exempt

  • Current family ownership since 1989
  • A stalled restoration project which appears structurally sound and retains its original engine
  • Accompanied by numerous spare parts and updated decades ago with a Carrera RS 2.7-style front air dam and 'duck tail' spolier
  • A great opportunity

A rival to the Ferrari Dino 246 GT in period, Porsche thoroughly reworked its 911 range for the 1972-model year. Powered by an enlarged 2341cc ('2.4') SOHC six-cylinder engine allied to either five-speed manual (Type 915) or Sportmatic transmission, the newcomer also benefited from revised rear suspension mountings which helped quell compound strut movement and so improved roadholding over imperfect road surfaces not to mention rack and pinion steering and four-wheel disc brakes. Labelled internally as the ‘E-Series’, the 2.4 litre models produced during the 1972-model year (August 1971 – July 1972) further boasted a more centrally located dry sump oil tank which in turn necessitated the fitment of an external flap to facilitate filling. Christened the ‘Oel Klappe’, its location towards the top of a B-post is alleged to have prompted unwitting petrol station attendants to pump fuel into the oil tank with predictably serious consequences. Thus, for the ‘F-Series’ and subsequent 911 derivatives Porsche repositioned the oil tank aftwards to ensure it could only be topped up from within the engine bay. Perceived as a design flaw when new, the rarity of surviving ‘Oel Klappe’ examples means that they are particularly sought after today. Indeed, it is believed that just 106 ‘E-Series’ 2.4 litre cars were completed in right-hand drive split between the ‘T’, ‘E’ and ‘S’ variants. Typically carburettor-fed, the former boasted some 130bhp / 145lbft of torque and was reputedly capable of 0-60mph in 7.6 seconds and 128mph.

Understood to have been supplied new to a diplomat based at the Australian High Commission on The Strand in London and to have worn the associated number plates ‘104 D 373’, this decidedly rare ‘Oel Klappe’ 911T must have cut quite a dash. Specified with the preferred Type 915 five-speed manual gearbox as well an optional sunroof and electric front windows, the Porsche was showing two previous keepers on its V5 Registration Document by the time the vendor’s late husband acquired it during 1989. Repainted Alpine White at some prior stage (from what is thought to have been its original Roman Purple hue), the iconic sportscar had also gained a Carrera RS 2.7-style front airdam and ‘duck tail’ rear spoiler. Taken off the road decades ago, the 911T was partially dismantled pending a restoration. Although, he sourced numerous new parts and got much of the way through an interior re-trim, the vendor’s late husband was unable to see the project through to completion. From what we have been able to gather the basic structure appears to be sound with no obvious signs of corrosion (albeit potential purchasers must reassure themselves on that point). There are signs too of careful maintenance with the throttle linkage still operating smoothly due to liberal greasing. The factory-fitted engine turns over freely but has not been started for years. A rare opportunity to acquire a desirable right-hand drive ‘Oel Klappe’ 911T, ‘RYY 92K’ is coming to market for the first time in thirty-five years. In addition to assorted trim materials, the Porsche is accompanied by a current V5C, copy of an old-style Registration Document, Porsche 2.4 Register Vehicle Registration Form, driver’s manual and assorted photos.

For more information, please contact:
John Markey
01428 607899


All successful bids must be paid in full by midday the day after the auction at the latest.

You can collect your new pride and joy from our venue until 1pm the day following the sale or our partners are on hand to help arrange safe transportation:


Auction: Imperial War Museum | Duxford, Cambridgeshire, 13th Mar, 2024

An auction of classic, collector and performance motorcars to be held at the iconic and visually stunning Imperial War Museum, Duxford. Venue Details 

To enquire about entering your classic or performance car into the auction please call our sales office on 01925 210035, email sales@HandH.co.uk or click here: Enter Your Classic Motorcar 

All our professional valuations are complimentary and without obligation.

To take part in the live online bidding please click 'Register to Bid | Sign In' at the top of the page  Register to Bid


Tues 12th March from 12pm
Wed 13th March from 9am

View all lots in this sale

Do you have an item to sell?

If so, contact one of our friendly specialists for your free valuation by completing the form below and someone will get back to you as quickly as possible.

If you prefer to speak to humans, don't hesitate to call our office on +44 (0)1925 210035

Contact Us Today!



Drag and drop .jpg images here to upload, or click here to select images.

Cars from the 1910s to the 2010s head to auction for Buxton sale
H&H’s motorcycle sales off to a flying start in 2024 with market-leading 88 percent sales rate
Turning the Page: A New Chapter for H&H Classics
Goon, Goon, Gone: Unique Peter Sellers 1960 Bentley heads to auction
Eclectic 150-plus classic car auction helps round out H&H’s milestone 30th year celebrations
One of the UK’s best driving Aston Martin DB5s heads to auction
Mid-century sports car icons race to Buxton auction
Former front cover ‘star’ heads to auction
Classic British motorcycles shine as 230 lots head to the National Motorcycle Museum auction
Racing legend Patsy Burt's Jaguar XK120 speeds to Buxton auction
22-strong single owner classic motorcycle collection heads to auction
Norton's racing heritage set to ignite the auction stage
Rare Frazer-Nash BMW with rich racing history to be auctioned
“The Rolls-Royce” of the motorcycle world, heads to      auction
Martini inspired Porsche 911 ‘RSR’ Tribute to head under the hammer
Rare ‘Car on Two Wheels’ heads to auction for the first time in 30 years
More than 100 classics sold in H&H’s 30th anniversary sale
Stunning classics worth more than £9 million offered in 30th anniversary auction
Rare Aston Martin DB1 heads to anniversary auction from long-term ownership
Rare Bentleys to star in 30th celebration auction
H&H Classics 30th Anniversary Auction
H&H unveils details of its 30th anniversary celebrations
Classic car owners handed ULEZ lifeline
H&H Classics auction Hurricane X-75 Prototype to National Motorcycle Museum
Vintage and modern classics lead the way at latest H&H sale
H&H offers exceptional range of vehicles spanning 11 individual decades
Pavilion Gardens. Wednesday 26th July 2023
A whimsical blast from the past: Chitty Chitty Bang Bang recreation heads to auction
From Italy with love: auction showcasing the essence of Italian design and sprezzatura
250 Motorcycles & Vintage Scooters Set To Go Under The Hammer!
March of the Mods: Lambretta owned by Paul Weller heads to auction
Lawbreakers to law enforcers: historic scooters with infamous connections up for sale
Jaguar SS100 among £2¼  million worth of classics sold at the Imperial War Museum
British classics to shine at H&H Classics’ sale
Historic Guinness Collection heads to auction
Browse The Catalogue Now! 135 Classic & Performance Cars To Go Under The Hammer.
Robbie Savage’s Ferrari F430 to be sold at H&H Classics
RAC Rally winning ‘Jaguar’ to be sold at auction
Former MP’s Bentley and Facel Vega ‘garage find’ among £1.3m worth of classics hammered away by H&H
Pavilion Gardens, Buxton Auction Preview Video
Genuine ‘matching numbers’ 1967 Shelby GT500 Fastback among 89 strong classic car auction
Rare Facel Vega ‘garage find’ heads to auction
Indian 4 and Lambretta DL200
Golden opportunity to acquire famous limited edition Italjet scooter
H&H Classics commences landmark year with sale of 121 cars
‘Brand new’ Porsche 911 heading to auction after 21 years
Brooklands race winning Bentley to go under the hammer
Actor, Sir Michael Caine’s first car, heads to auction. £100,000 - £150,000