1991 Porsche 911 Engine Parts

National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Designed to repair damaged, grooved or worn shafts
• Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
• Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
• Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
• Easy to install with removable flange and installation tool
• Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

WARNING: This item cannot be returned for a replacement or refund if opened! The Original Equipment valve cover gasket set is an ideal high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

• OE Quality
• Improved reliability, durability, and engine performance
• Reduced oil consumption
• Embossment shapes designed to improve durability

Timing Guide Rail

The Canyon Engine Valve Guide is manufactured using Phosphorous Bronze and is an exact duplication of the original equipment part. The valve guides are complete with the snap ring installed (Mercedes) and the correct color code indicating the oversize diameter.

Product Features:

• OE Quality
• Same design as the original equipment part
• Manufactured from Phosphorous Bronze material
• Complete with snap ring (Mercedes)

Goetze OE piston rings for gasoline and diesel engines, are developed for automobile, light commercial vehicle and heavy-duty applications, come in a wide range of sizes, include the first ring sets introduced for Euro4-compliant engines. The end gap can be a straight cut, angled cut or gas tight type for improved sealing. Radial pressure distribution greatly influences ring performance therefore we modify the pressure distribution according to the individual application. The wear-resistance and running-in behavior of the outer ring surface is defined by selecting from various coating options, which include the high-performance electroplated, thermally sprayed and PVD coatings. Goetze modern oil control rings scrape off oil from the cylinder wall, leaving just the required amount for lubrication. The running surface is the contour of the ring facing the cylinder surface. The objective of this running surface profile is to create a lubrication slot with a hydrodynamic film which the piston ring can slide on without touching the other surface. An optimized asymmetrical-barrelled running surface ensures low lubricant consumption even after a very long running time. Goetze piston rings have anti-scuffing properties that promote smooth engine operation, reduced oil consumption and long engine life. In addition, the Goetze process helps prevent materials from detaching and cracking and aids in environmental protection

Product Features:

• Maximum durability
• High wear and corrosion resistance
• Excellent heat-conducting capacity
• Optimal fit

TRW Engine Components is a recognized developer of valves and valve train components. A wide range of materials and material combinations are used to meet the engineering requirements in the different engine applications. Materials vary from ferritic martensitic steels (intake valves) and austentic CrMn based steels to extreme heat and corrosion resistant Nickel base super alloy for exhaust valves. To improve wear and corrosion resistance, valves can be chromium plated or nitrided. These coatings are used to improve the compatibility of the valve stem surface to the valve guide material. If necessary, exhaust valves (and in some cases also intake valves) can be hard-faced. In hard-facing, a more heat and wear resistant material is welded to form the valve seat. Seat hard-facing extends the valve life significantly.

Product Features:

• OE Quality
• Optimized for strength
• Heat and corrosion resistant
• Chromium plated or nitrided
• Stem optimized to resist wear

Rocker Shaft End Plu

Accessory Belt Tension Pulley

Oil Filler Cap

Timing Cover Washer

Air Intake Hose Clam

Rocker Shaft

Valve Adjust Screw

ContiTech oil lines can be realized with a wide variety of materials: Steel, stainless steel, aluminum and polyamide. For cooling engine oil, ContiTech offer elbows with high-temperature-resistant oil hoses for pressures of up to 15 bar, elastomer hoses for temperatures of up to 190C, as well as plastic hoses made of Teflon corrugated tubing, polyester or fiberglass braid, and stainless steel outer braiding that can withstand temperatures of up to 230C. For turbocharger lubrication, you can rely on ContiTech’s variety of solutions for temperatures of up to +400C. For turbocharger cooling, ContiTech use materials and material combinations involving aluminum, steel, and EPDM.

Product Features:

• Lines with high-temperature-resistant oil hoses to 15 bar
• Elastomer hoses for sustained temperatures of up to +190C; sold by the meter or as molded hoses
• Plastic hoses made of Teflon corrugated tubing, polyester or fiberglass braid and stainless steel outer braiding, temperature-resistant to +230C
• Tailor-made coupling and fitting system solutions that are easy to install and reliable in use
• Tubing made of steel, stainless steel, aluminum or plastic

Cylinder Head Nut

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:

• Premium quality materials for longer service life
• Sealed connections (where applicable) to prevent environmental corrosion and performance issues
• Global coverage for import and/or domestic applications
• OE specified wire gauge to ensure a reliable electrical connection
• Designed to meet or exceed OE specifications in form, fit and function

Rocker Arm

Crankshaft Seal

Connecting Rod Bolt

Glyco advanced engine bearing technologies withstand heavy loads and cope with the increasingly challenging conditions of modern, environmentally-friendly engines. Glyco is the world’s largest manufacturer of OE-quality bearings. Every year, our engine bearings are fitted on more than 10 million engines around the world – from small bore engines to heavy-duty commercial vehicles and stationary engines. Driven by the need to reduce CO2 emissions, today’s engines extract more power from less fuel. Due to the increased temperature and load, conventional bearings struggle to cope. Thanks to over 100 years of innovation, Glyco provides bearings with advanced metallurgy that can withstand these challenges. Federal-Mogul invented Glyco Sputter Bearings with twice the service life of conventional bearings. Glyco developed G-188, the first intelligent bearing material, and were also first to launch a full lead-free material portfolio. Recent innovations include the highly durable Glyco IROX bearing shells, which address the challenges of hybrid, stop-start and downsized engines.

Product Features:

• Original Equipment Quality
• Excellent wear resistance
• Low propensity to seize
• Reduction in Friction

Valve Keeper

Oil Return Tube Kit

Oil Return Tube Circlip

Valve Adjust Nut

Timing Chain

Timing Chain

Timing Chain