Denso 3137 Q16PR-U Nickel U-Groove Spark Plug

Denso U-Groove spark plugs feature a u-shaped groove in the ground electrode, giving the flame a groove to grow in, resulting in less flame dissipation and a larger flame front for a more complete combustion. This translates to better fuel efficiency and improved throttle response. Machine rolled threads prevent seizing or cross threading during installation and removal. 100% pre-fired to assure the highest quality possible. Purified alumina powder insulator provides exceptional strength and thermal conductivity. Five rib insulator prevents flashover. Copper-glass seal bonds center electrode and insulator for a gas-tight seal.

• Shell
• Thread Diameter14mm
• Thread Pitch1.25mm
• Seat TypeGasket
• Reach19mm (3/4")
• Hex Size5/8" (16mm)
• Terminal TypeRemovable Nut
• Overall HeightJIS
• Gap.031" (0.8mm)

• Center Electrode
• MaterialNickel
• TypeStandard
• Size2.5mm
• ProjectionProjected

• Ground Electrode
• MaterialNickel
• TypeU-Groove
• Quantity1

• Specifications
• ResistorYes
• Resistor Value5k Ohm
• Heat Range16
• Torque SpecsCast Iron: 26-30 lb. ft. Aluminum: 15-22 lb. ft.

• Part Information
• BrandDenso
• Warranty12 Months
• Longevity20-30k Miles

Automotive

• 1999
  • Jaguar
    • XK8 Base Verify fitment
• 1997
  • Mercedes-Benz
    • C280 Base Verify fitment
    • E420 Base Verify fitment
    • S420 Base Verify fitment
    • S500 Base Verify fitment
    • SL320 Base Verify fitment
    • SL500 Base Verify fitment
• 1996
  • Mercedes-Benz
    • C220 Base Verify fitment
• 1995
  • BMW
    • 850CSi Base Verify fitment
  • Mercedes-Benz
    • C220 Base Verify fitment
    • E320 Base Verify fitment
    • E420 Base Verify fitment
    • S420 Base Verify fitment
    • S500 Base Verify fitment
    • S600 Base Verify fitment
    • SL500 Base Verify fitment
    • SL600 Base Verify fitment
• 1994
  • BMW
    • 750iL Base Verify fitment
    • 850Ci Base Verify fitment
    • 850CSi Base Verify fitment
  • Mercedes-Benz
    • C220 Base Verify fitment
    • E320 Base Verify fitment
    • E420 Base Verify fitment
    • E500 Base Verify fitment
    • S420 Base Verify fitment
    • S500 Base Verify fitment
    • S600 Base Verify fitment
    • SL500 Base Verify fitment
    • SL600 Base Verify fitment
• 1993
  • BMW
    • 750iL Base Verify fitment
    • 850Ci Base Verify fitment
  • Mercedes-Benz
    • 300CE Base Verify fitment
    • 300E 2.8 Verify fitment
    • 300E 4Matic Verify fitment
    • 300E Base Verify fitment
    • 300SE Base Verify fitment
    • 300SL Base Verify fitment
    • 300TE 4Matic Verify fitment
    • 300TE Base Verify fitment
    • 400E Base Verify fitment
    • 400SEL Base Verify fitment
    • 500E Base Verify fitment
    • 500SEC Base Verify fitment
    • 500SEL Base Verify fitment
    • 500SL Base Verify fitment
    • 600SEC Base Verify fitment
    • 600SEL Base Verify fitment
    • 600SL Base Verify fitment
  • Saab
    • 900 S Verify fitment
    • 900 Turbo Verify fitment
    • 900 Turbo Commemorative Edition Verify fitment
• 1992
  • BMW
    • 750iL Base Verify fitment
    • 850i Base Verify fitment
  • Mercedes-Benz
    • 300CE Base Verify fitment
    • 300SE Base Verify fitment
    • 300SL Base Verify fitment
    • 400E Base Verify fitment
    • 400SE Base Verify fitment
    • 500E Base Verify fitment
    • 500SEL Base Verify fitment
    • 500SL Base Verify fitment
    • 600SEL Base Verify fitment
  • Saab
    • 900 Base Verify fitment
    • 900 S Verify fitment
    • 900 Turbo Verify fitment
• 1991
  • BMW
    • 750iL Base Verify fitment
    • 850i Base Verify fitment
  • Mercedes-Benz
    • 300SL Base Verify fitment
    • 500SL Base Verify fitment
  • Saab
    • 900 Base Verify fitment
    • 900 S Verify fitment
    • 900 S Turbo Verify fitment
    • 900 SE Turbo Verify fitment
    • 900 SPG Verify fitment
• 1990
  • BMW
    • 750iL Base Verify fitment
  • Mercedes-Benz
    • 300CE Base Verify fitment
    • 300SL Base Verify fitment
    • 500SL Base Verify fitment
  • Saab
    • 9000 CD Verify fitment
    • 9000 S Verify fitment
    • 9000 Turbo Verify fitment
• 1989
  • BMW
    • 750iL Base Verify fitment
  • Peugeot
    • 405 DL Verify fitment
    • 405 Mi 16 Verify fitment
    • 405 S Verify fitment
  • Saab
    • 9000 Base Verify fitment
    • 9000 CD Verify fitment
    • 9000 S Verify fitment
• 1988
  • BMW
    • 750iL Base Verify fitment

Powersports

Sorry, no powersports applications are associated with this part.

Lawn & Garden

• Lawn & Garden Tractors
  • Husqvarna
    • LT1000-14 OHV Verify fitment
    • LT4140G - H OHV Verify fitment
  • Kubota
    • 19hp Verify fitment
    • Model WG 600 Verify fitment
    • Model WG 750 Verify fitment
  • Laser
    • L 110 Verify fitment
    • L 85 Verify fitment
  • Nautac
    • Club 14 OHV Verify fitment
• Outdoor Power Equipment
  • Kohler
    • C 5 Verify fitment
    • C 6 Verify fitment
    • CH 11 Verify fitment
    • CH 12.5 Verify fitment
    • CH 14 Verify fitment
    • CH 18 Verify fitment
    • CH 20 Verify fitment
    • CH 22 2-Cyl. OHV Verify fitment
    • CH 25 2-Cyl. OHV Verify fitment
    • CH 5 Verify fitment
    • CH 6 Verify fitment
    • CV 11 Verify fitment
    • CV 12.5 Verify fitment
    • CV 14 Verify fitment
    • CV 18 Verify fitment
    • CV 20 Verify fitment
  • Acme
    • AL75 OHC Verify fitment
  • Briggs & Stratton
    • 104000 OHV 4.5hp Verify fitment
    • 104700 OHV 5hp Verify fitment
    • 160000 OHV 8.5 hp Verify fitment
    • 161400 OHV 9hp Verify fitment
    • 260000 OHV 12hp Verify fitment
    • 260700 OHV 12hp Verify fitment
    • 261700 OHV 14hp Verify fitment
    • 290000 OHV 12.5 hp Verify fitment
    • 294400 OHV 2-Cyl. Verify fitment
    • 294470 OHV 14hp Verify fitment
    • 294700 OHV 14hp Verify fitment
    • 300000 OHV 15 hp Verify fitment
    • 303400 OHV 2-Cyl. Verify fitment
    • 3034000 16hp Verify fitment
    • 303700 16hp Verify fitment
    • 350400 OHV 2-Cyl. Verify fitment
    • 5.5hp OHV Verify fitment
    • 5hp OHV Verify fitment
    • Vanguard Verify fitment
• Mowers
  • Acme
    • All Models Verify fitment
  • Briggs & Stratton
    • 294777 Vanguard V-Twin Verify fitment
    • 303777 Vanguard V-Twin Verify fitment
    • 350777 Vanguard V-Twin Verify fitment
    • 351777 Vanguard V-Twin Verify fitment
    • 380777 Vanguard V-Twin Verify fitment
  • Cub Cadet
    • Briggs & Stratton OHV Verify fitment
  • Grazer
    • Kubota Verify fitment
  • Mountfield
    • Briggs & Stratton Engine Verify fitment