NGK 3951 TR55 Spark Plug

ATHENA Multi-Layer Steel (MLS) Gasket

Material
ATHENA MLS gaskets feature a combination of 3 to 5 layers made of different types of raw materials.

The combination of outer and inner layers is designed to provide superior standard compression performance, and the type of steel used may vary according to engine requirements.
Athena MLS gaskets provide uniform torque load over the entire sealing surface to compensate for any cylinder deformation.

The Athena MLS gasket is the ideal solution for both aluminum cylinder heads with cast iron blocks and aluminum cylinder heads with aluminum blocks.

Manufacturing process
The newly designed Athena MLS cylinder head gaskets are manufactured from high-quality, high-hardness 301 stainless steel.
Each layer is individually formed by state-of-the-art laser cutting and embossed with an optimized forming process.
Two layers of the cylinder head gasket undergo a stress relief process to significantly reduce stress induced by embossing.
After the stress relief process, a patented two-component polymer coating is applied, ensuring uniform coverage of the outer layers, with no breaks in the coating. This process ensures micro-sealing of engine oil and coolant fluids.

Athena MLS gaskets are tested and analyzed on engine test benches and in endurance tests.

Gas Stopper Technology

Gas Stopper technology is a key factor in the design of competition MLS cylinder head gaskets. The stainless steel stopper layer incorporates an innovative active folding system that provides a high-pressure seal around the cylinder bore when the cylinder head is tightened. The gas stopper is located around the combustion chamber, allowing for a tighter fit between the cylinder head and the engine block, preventing gas leaks.

This also prevents component deformation due to faster temperature equalization. Benefits

Superior sealing properties under high-pressure conditions

Increased elasticity and constant load resistance

Optimized load balance

Improved engine performance

Greater durability

Patented coating technology

Our two-component polymer coating is applied after the stress relief process and ensures uniform coverage of the outer layers, with no breaks in the coating. This process ensures micro-sealing of engine coolant/oil fluids and meets the demands of various harsh environments.

The first layer is a high-temperature compound that conforms to the surface irregularities of the engine block and cylinder head. (Typical MLS cylinder head gaskets require a 30 Ra surface finish, while Athena's seal surface finishes up to 60 Ra).

The second layer is easily removable and does not adhere to contact surfaces when disassembling the engine.
Fits:
CITROËN B1E (XU51C) 1580cc 53kwCITROËN B6D 1580cc 83kwCITROËN B6E 1580cc 85kwCITROËN BAY (XU5CP) 1580cc 55kwCITROËN BAZ (XU5CP) 1580cc 55kwCITROËN BDY (XU5M) 1580cc 65kwCITROËN BDZ (XU5M) 1580cc 65kwCITROËN BFZ (XU5JP) 1580cc 65kwCITROËN BX (XB-_)1.6 1580cc 85kwCITROËN BX (XB-_)15 1580cc 59kwCITROËN BX (XB-_)16 1580cc 53kwCITROËN BX (XB-_)16 1580cc 55kwCITROËN BX (XB-_)16 (XB180Z) 1580cc 76kwCITROËN BX (XB-_)16 E 1580cc 65kwCITROËN BX Break (XB-_)1.6 1580cc 85kwCITROËN BX Break (XB-_)15 1580cc 59kwCITROËN BX Break (XB-_)15 1580cc 58kwCITROËN BX Break (XB-_)16 1580cc 65kwCITROËN BX Break (XB-_)16 1580cc 53kwCITROËN BX Break (XB-_)16 (XB180Z) 1580cc 76kwCITROËN XANTIA (X1_, X2_)1.6 i 1580cc 65kwCITROËN ZX (N2)1.6 1580cc 66kwCITROËN ZX (N2)1.6 i 1580cc 65kwCITROËN ZX Break (N2)1.6 i 1580cc 65kwCITROËN BERLINGO / BERLINGO FIRST MPV (MF_, GJK_, GFK_)1.8 i (MFLFX) 1761cc 66kwCITROËN BERLINGO / BERLINGO FIRST MPV (MF_, GJK_, GFK_)1.8 i 4WD (MFLFX) 1761cc 66kwCITROËN BERLINGO / BERLINGO FIRST MPV Van (M_)1.8 i 1761cc 66kwCITROËN EVASION MPV (22, U6) | SYNERGIE1.8 1761cc 73kwCITROËN LFX (XU7JB) 1761cc 58kwCITROËN LFZ (XU7JP) 1761cc 73kwCITROËN XANTIA (X1_, X2_)1.8 i 1761cc 66kwCITROËN XANTIA (X1_, X2_)1.8 i 1761cc 74kwCITROËN XANTIA Break (X1_, X2_)1.8 i 1761cc 74kwCITROËN XANTIA Break (X1_, X2_)1.8 i 1761cc 66kwCITROËN XSARA (N1)1.8 i 1761cc 66kwCITROËN XSARA (N1)1.8 i Aut. 1761cc 74kwCITROËN XSARA Break (N2)1.8 i 1761cc 66kwCITROËN XSARA Break (N2)1.8 i Aut. 1761cc 74kwCITROËN XSARA Coupe (N0)1.8 i 1761cc 66kwCITROËN XSARA Coupe (N0)1.8 i 1761cc 74kwCITROËN ZX (N2)1.8 1761cc 76kwCITROËN ZX (N2)1.8 i 1761cc 74kwCITROËN ZX Break (N2)1.8 i 1761cc 74kwCITROËN 159A 1905cc 75kwCITROËN 159K 1905cc 107kwCITROËN BX (XB-_)1.9 1905cc 92kwCITROËN BX (XB-_)1.9 All-wheel Drive 1905cc 92kwCITROËN BX (XB-_)1.9 GTi 1905cc 107kwCITROËN BX (XB-_)19 1905cc 70kwCITROËN BX (XB-_)19 1905cc 78kwCITROËN BX (XB-_)19 1905cc 77kwCITROËN BX (XB-_)19 1905cc 75kwCITROËN BX (XB-_)19 1905cc 76kwCITROËN BX (XB-_)19 E 1905cc 80kwCITROËN BX (XB-_)19 E 4x4 1905cc 80kwCITROËN BX (XB-_)19 GTi 1905cc 90kwCITROËN BX (XB-_)19 GTi 1905cc 88kwCITROËN BX (XB-_)19 GTi 1905cc 90kwCITROËN BX (XB-_)19 GTi 16V 1905cc 108kwCITROËN BX (XB-_)19 GTi 16V 1905cc 116kwCITROËN BX (XB-_)19 GTi 4x4 1905cc 88kwCITROËN BX Break (XB-_)19 1905cc 76kwCITROËN BX Brake (XB-_)19 1905cc 80kwCITROËN BX Brake (XB-_)19 1905cc 78kwCITROËN BX Brake (XB-_)19 1905cc 70kwCITROËN BX Brake (XB-_)19 1905cc 75kwCITROËN BX Brake (XB-_)19 1905cc 88kwCITROËN BX Brake (XB-_)19 4x4 1905cc 78kwCITROËN BX Brake (XB-_)19 4x4 1905cc 80kwCITROËN BX Brake (XB-_)19 Cat 1905cc 75kwCITROËN D2A (XU92C) 1905cc 75kwCITROËN D2C (XU92C) 1905cc 70kwCITROËN D2E 1905cc 78kwCITROËN D2F 1905cc 80kwCITROËN D6A (XU9J2) 1905cc 90kwCITROËN D6C (XU9J4) 1905cc 116kwCITROËN D6E (XU9JA) 1905cc 93kwCITROËN D6U 1905cc 92kwCITROËN DDZ (XU9M) 1905cc 80kwCITROËN DFW (XU9J4) 1905cc 108kwCITROËN DFZ (XU9J1) 1905cc 75kwCITROËN DKZ (XU9JA) 1905cc 88kwCITROËN ZX (N2)1.9 1905cc 93kwCITROËN ZX (N2)1.9 1905cc 96kwCITROËN ZX (N2)1.9 i 1905cc 88kwFIAT LFW (XU7JP) 1761cc 73kwFIAT ULYSSE (220_)1.8 (220.BB5) 1761cc 73kwPEUGEOT 171 (XU5S) 1580cc 66kwPEUGEOT 180A (XU5J) 1580cc 76kwPEUGEOT 180Z (XU5J) 1580cc 76kwPEUGEOT 205 I (741A/C)1.6 1580cc 53kwPEUGEOT 205 I (741A/C)1.6 1580cc 55kwPEUGEOT 205 I (741A/C)1.6 GTI 1580cc 85kwPEUGEOT 205 I (741A/C)1.6 GTI 1580cc 76kwPEUGEOT 205 I Convertible (741B, 20D)1.6 1580cc 85kwPEUGEOT 205 I Convertible (741B, 20D)1.6 CJ 1580cc 65kwPEUGEOT 205 I Convertible (741B, 20D)1.6 CTI 1580cc 76kwPEUGEOT 205 II (20A/C)1.6 1580cc 66kwPEUGEOT 205 II (20A/C)1.6 1580cc 55kwPEUGEOT 205 II (20A/C)1.6 1580cc 53kwPEUGEOT 205 II (20A/C)1.6 Aut. 1580cc 58kwPEUGEOT 205 II (20A/C)1.6 Aut. 1580cc 65kwPEUGEOT 205 II (20A/C)1.6 GTI 1580cc 85kwPEUGEOT 205 II (20A/C)1.6 GTI 1580cc 76kwPEUGEOT 305 II (581M)1.6 1580cc 69kwPEUGEOT 305 II (581M)1.6 1580cc 55 kW PEUGEOT 305 II (581M) 1.6 1580 cc 66 kW PEUGEOT 305 II (581M) 1.6 1580 cc 58 kW PEUGEOT 305 II (581M) 1.6 1580 cc 54 kW PEUGEOT 305 II Break (581E) 1.6 1580 cc 66 kW PEUGEOT 305 II Break (581E) 1.6 1580 cc 54 kW PEUGEOT 305 II Break (581E) 1.6 1580 cc 55 kW PEUGEOT 305 Station Wagon Van (581S) 1.6 1580 cc 58 kW PEUGEOT 309 I (10C, 10A) 1.6 1580 cc 76 kW PEUGEOT 309 I (10C, 10A) 1.6 1580cc 55kw PEUGEOT 309 I (10C, 10A) 1.6 1580cc 53kw PEUGEOT 309 I (10C, 10A) 1.6 1580cc 59kw PEUGEOT 309 I (10C, 10A) 1.6 1580cc 83kw PEUGEOT 309 I (10C, 10A) 1.6 Cat 1580cc 55kw PEUGEOT 309 II (3C, 3A) 1.6 1580cc 65kw PEUGEOT 309 II (3C, 3A) 1.6 1580cc 69kw PEUGEOT 309 II (3C, 3A) 1.6 1580cc 68 kW PEUGEOT 309 II (3C, 3A) 1.6 1580 cc 74 kW PEUGEOT 405 I (15B) 1.6 1580 cc 65 kW PEUGEOT 405 I (15B) 1.6 1580 cc 69 kW PEUGEOT 405 I (15B) 1.6 1580 cc 55 kW PEUGEOT 405 I (15B) 1.6 1580 cc 53 kW PEUGEOT 405 I (15B) 1.6 1580 cc 66 kW PEUGEOT 405 I (15B) 1.6 4x4 1580 cc 65 kW PEUGEOT 405 I Break (15E) 1.6 1580 cc 68 kW PEUGEOT 405 I Break (15E) 1.6 1580cc 66kwPEUGEOT 405 I Break (15E)1.6 1580cc 53kwPEUGEOT 405 I Break (15E)1.6 1580cc 55kwPEUGEOT 405 I Break (15E)1.6 1580cc 65kwPEUGEOT 405 I Break (15E)1.6 SRi 4x4 1580cc 65kwPEUGEOT 405 II (4B)1.6 1580cc 65kwPEUGEOT 405 II (4B)1.6 1580cc 68kwPEUGEOT 405 II (4B)1.6 1580cc 66kwPEUGEOT 405 II Break (4E)1.6 1580cc 65kwPEUGEOT 405 II Break (4E)1.6 1580cc 66kwPEUGEOT 405 II Break (4E)1.6 1580cc 68kwPEUGEOT 406 (8B)1.6 1580cc 65kwPEUGEOT B1A (XU51C) 1580cc 55kwPEUGEOT B1D (XU51C) 1580cc 55kwPEUGEOT B1E (XU51C) 1580cc 53kwPEUGEOT B2A (XU52C/K) 1580cc 66kwPEUGEOT B6B (XU5J) 1580cc 76kwPEUGEOT B6D (XU5JA) 1580cc 83kwPEUGEOT BAZ (XU5CP) 1580cc 54kwPEUGEOT BDY (XU5M2Z) 1580cc 65kwPEUGEOT BDY (XU5M3Z) 1580cc 65kwPEUGEOT BDZ (XU5M) 1580cc 65kwPEUGEOT BFZ (XU5JP) 1580cc 65kwPEUGEOT XU5J1 1580cc 74kwPEUGEOT 306 (7B, N3, N5)1.8 1761cc 74kwPEUGEOT 306 (7B, N3, N5)1.8 ST 1761cc 74kwPEUGEOT 306 Break (7E, N3, N5)1.8 1761cc 74kwPEUGEOT 306 Cabriolet (7D, N3, N5)1.8 1761cc 74kwPEUGEOT 306 Convertible (7D, N3, N5) 1.8 1761 cc 74 kW PEUGEOT 306 Hatchback (7A, 7C, N3, N5) 1.8 1761 cc 74 kW PEUGEOT 405 II (4B) 1.8 1761 cc 74 kW PEUGEOT 405 II Break (4E) 1.8 1761 cc 74 kW PEUGEOT 406 (8B) 1.8 1761 cc 66 kW PEUGEOT 406 Break (8E/F) 1.8 1761 cc 74 kW PEUGEOT 406 Break (8E/F) 1.8 1761 cc 66 kW PEUGEOT 806 (221) 1.8 1761 cc 73 kW PEUGEOT EXPERT (224_) 1.8 1761 cc 74kwPEUGEOT EXPERT Van (222) 1.8 1761cc 74kwPEUGEOT L6A (XU7JP) 1761cc 74kwPEUGEOT LFW (XU7JP) 1761cc 73kwPEUGEOT LFX (XU7JB) 1761cc 66kwPEUGEOT LFZ (XU7JP) 1761cc 74kwPEUGEOT PARTNER MPV (5_, G_) | RANCH 1.8 1761cc 66kwPEUGEOT PARTNER MPV Van (5_, G_) | RANCH 1.8 1761cc 66kwPEUGEOT PARTNER Platform/Chassis (5_, G_) 1.8 1761cc 66kwPEUGEOT 159 (XU9S) 1905cc 75kwPEUGEOT 205 I (741A/C)1.9 GTI 1905cc 94kwPEUGEOT 205 I (741A/C)1.9 GTI 1905cc 75kwPEUGEOT 205 I Convertible (741B, 20D)1.9 CTI 1905cc 75kwPEUGEOT 205 I Convertible (741B, 20D)1.9 CTi 1905cc 74kwPEUGEOT 205 II (20A/C)1.9 GTI 1905cc 94kwPEUGEOT 205 II (20A/C)1.9 GTI 1905cc 88kwPEUGEOT 205 II (20A/C)1.9 GTI 1905cc 75kwPEUGEOT 205 II (20A/C)1.9 GTI Cat 1905cc 75kwPEUGEOT 305 II (581M)1.9 1905cc 72kwPEUGEOT 305 II Break (581E)1.9 1905cc 72kwPEUGEOT 305 II Break (581E)1.9 1905cc 75kwPEUGEOT 309 I (10C, 10A)1.9 1905cc 80kwPEUGEOT 309 I (10C, 10A)1.9 1905cc 75kwPEUGEOT 309 I (10C, 10A)1.9 1905cc 72kwPEUGEOT 309 I (10C, 10A)1.9 GTI 1905cc 94kwPEUGEOT 309 I (10C, 10A)1.9 GTI 1905cc 88kwPEUGEOT 309 II (3C, 3A)1.9 1905cc 80kwPEUGEOT 309 II (3C, 3A)1.9 1905cc 72kwPEUGEOT 309 II (3C, 3A)1.9 GTI 1905cc 88kwPEUGEOT 309 II (3C, 3A)1.9 GTI 16V 1905cc 108kwPEUGEOT 309 II (3C, 3A)1.9 GTI 16V 1905cc 116kwPEUGEOT 405 I (15B)1.9 1905cc 88kwPEUGEOT 405 I (15B)1.9 1905cc 70kwPEUGEOT 405 I (15B)1.9 1905cc 80kwPEUGEOT 405 I (15B)1.9 1905cc 90kwPEUGEOT 405 I (15B)1.9 (15BDFV) 1905cc 82kwPEUGEOT 405 I (15B)1.9 4x4 1905cc 80kwPEUGEOT 405 I (15B)1.9 4x4 1905cc 116kwPEUGEOT 405 I (15B)1.9 Injection 1905cc 77kwPEUGEOT 405 I (15B)1.9 Sport MI-16 4x4 1905cc 108kwPEUGEOT 405 I (15B)1.9 Sport MI-16 1905cc 116 kW PEUGEOT 405 I (15B) 1.9 Sport MI-16 1905 cc 108 kW PEUGEOT 405 I Break (15E) 1.9 1905 cc 80 kW PEUGEOT 405 I Break (15E) 1.9 1905 cc 88 kW PEUGEOT 405 I Break (15E) 1.9 1905 cc 72 kW PEUGEOT 405 I Break (15E) 1.9 1905 cc 77 kW PEUGEOT 405 I Break (15E) 1.9 1905 cc 70 kW PEUGEOT 405 I Break (15E) 1.9 4x4 1905 cc 80 kW PEUGEOT 405 I Break (15E) 1.9 4x4 1905 cc 88 kW PEUGEOT 405 I Brake (15E) 1.9 All-wheel Drive 1905 cc 77 kW PEUGEOT 405 II (4B) 1.9 (4BD5A2) 1905 cc 71 kW PEUGEOT D2A (XU92C) 1905 cc 75 kW PEUGEOT D2B (XU9S) 1905 cc 75 kW PEUGEOT D2C (XU92C) 1905 cc 70 kW PEUGEOT D5A (XU92C) 1905 cc 71 kW PEUGEOT D6A (XU9J2) 1905 cc 80 kW PEUGEOT D6B (XU9JA) 1905 cc 94 kW PEUGEOT D6C (XU9J4) 1905 cc 108 kW PEUGEOT DDZ (XU9M) 1905 cc 80 kW PEUGEOT DFV (XU9J2) 1905 cc 82 kW PEUGEOT DFW (XU9J4Z) 1905 cc 108 kW PEUGEOT DFZ (XU9J1) 1905 cc 72 kW PEUGEOT DKZ (XU9JAZ) 1905 cc 88 kW